phân loại các dạng câu hỏi trong đề thi ĐH 07 08 09 10

PHN LOI CC DNG CU HI TRONG THI HC 2007 -2008 -2009-2010 KIM LOI TC DNG VI DD MUI Cõu Cho hn hp bt Al, Fe vo dung dch cha Cu(NO3)2 v AgNO3 Sau cỏc phn ng xy hon ton, thu c hn hp rn gm ba kim loi l: A Al, Fe, Cu B Al, Fe, Ag C Al, Cu, Ag D Fe, Cu, Ag Cõu Cho hn hp gm Fe v Zn vo dung dch AgNO3 n cỏc phn ng xy hon ton, thu c dung dch X gm hai mui v cht rn Y gm hai kim loi Hai mui X l A AgNO3 v Zn(NO3)2 B Fe(NO3)3 v Zn(NO3)2 C Fe(NO3)2 v AgNO D Zn(NO3)2 v Fe(NO3)2 Cõu Cho hn hp bt gm 2,7 gam Al v 5,6 gam Fe vo 550 ml dung dch AgNO 1M Sau cỏc phn ng xy hon ton, thu c m gam cht rn Giỏ tr ca m l (bit th t dóy th in hoỏ: Fe3+/Fe2+ ng trc Ag+/Ag) A 54,0 B 59,4 C 64,8 D 32,4 Cõu Cho m1 gam Al vo 100 ml dung dch gm Cu(NO3)2 0,3M v AgNO3 0,3M Sau cỏc phn ng xy hon ton thỡ thu c m2 gam cht rn X Nu cho m2 gam X tỏc dng vi lng d dung dch HCl thỡ thu c 0,336 lớt k ( ktc) Giỏ tr ca m1 v m2 ln lt l A 1,08 v 5,43 B 0,54 v 5,16 C 1,08 v 5,16 D 8,10 v 5,43 Cõu Tin hnh hai thớ nghim sau: - Thớ nghim 1: Cho m gam bt Fe (d) vo V1 lớt dung dch Cu(NO3)2 1M; - Thớ nghim 2: Cho m gam bt Fe (d) vo V2 lớt dung dch AgNO3 0,1M Sau cỏc phn ng xy hon ton, lng cht rn thu c hai thớ nghim u bng Giỏ tr ca V so vi V2 l A V1 = V2 B V1 = V2 C V1 = 5V2 D V1 = 10 V2 Cõu Cho hn hp gm 1,2 mol Mg v x mol Zn vo dung dch cha mol Cu2+ v mol Ag+ n cỏc phn ng xy hon ton, thu c mt dung dch cha ba ion kim loi Trong cỏc giỏ tr sau õy, giỏ tr no ca x tho trng hp trờn? A 1,8 B 1,2 C 2,0 D 1,5 Cõu Cho m gam hn hp bt Zn v Fe vo lng d dung dch CuSO4 Sau kt thỳc cỏc phn ng, lc b phn dung dch thu c m gam bt rn Thnh phn phn trm theo lng ca Zn hn hp bt ban u l A 90,27% B 82,20% C 12,67% D 85,30% Cõu Nhỳng mt st nng 100 gam vo 100 ml dung dch hn hp gm Cu(NO3)2 0,2M v AgNO3 0,2M Sau mt thi gian ly kim loi ra, sch lm khụ cõn c 101,72 gam (gi thit cỏc kim loi to thnh u bỏm ht vo st) Khi lng st ó phn ng l A 2,16 gam B 1,72 gam C 1,40 gam D 0,84 gam Cõu 10 Nhỳng mt lỏ kim loi M (ch cú hoỏ tr hai hp cht) cú lng 50 gam vo 200 ml dung dch AgNO3 1M cho n phn ng xy hon ton Lc dung dch, em cụ cn thu c 18,8 gam mui khan Kim loi M l A Zn B Mg C Fe D Cu KIM LOI TC DNG VI PHI KIM Cõu 11 Ho tan hon ton 2,81 gam hn hp gm Fe2O3, MgO, ZnO 500 ml axit H2SO4 0,1M (va ) Sau phn ng, hn hp mui sunfat khan thu c cụ cn dung dch cú lng l A 3,81 gam B 4,81 gam C 5,81 gam D 6,81 gam Cõu 12 Cho 2,13 gam hn hp X gm ba kim loi Mg, Cu v Al dng bt tỏc dng hon ton vi oxi thu c hn hp Y gm cỏc oxit cú lng 3,33 gam Th tớch dung dch HCl 2M va phn ng ht vi Y l A 75 ml B 57 ml C 50 ml D 90 ml Cõu 13 Nung núng 16,8 gam hn hp gm Au, Ag, Cu, Fe, Zn vi mt lng d khớ O2, n cỏc phn ng xy hon ton, thu c 23,2 gam cht rn X Th tớch dung dch HCl 2M va phn ng vi cht rn X l A 200 ml B 400 ml C 600 ml D 800 ml Cõu 14 ho tan hon ton 2,32 gam hn hp gm FeO, Fe3O4 v Fe2O3 (trong ú s mol FeO bng s mol Fe2O3), cn dựng va V lớt dung dch HCl 1M Giỏ tr ca V l A 0,23 B 0,18 C 0,08 D 0,16 Cõu 15 Cho 9,12 gam hn hp gm FeO, Fe2O3, Fe3O4 tỏc dng vi dung dch HCl (d) Sau cỏc phn ng xy hon ton, c dung dch Y; cụ cn Y thu c 7,62 gam FeCl2 v m gam FeCl3 Giỏ tr ca m l A 9,75 B 8,75 C 6,50 D 7,80 Cõu 16 Cho 11,36 gam hn hp gm Fe, FeO, Fe2O3, Fe3O4 phn ng ht vi dung dch HNO3 loóng (d), thu c 1,344 lớt khớ NO (sn phm kh nht, ktc) v dung dch X Cụ cn dung dch X thu c m gam mui khan Giỏ tr ca m l A 35,50 B 38,72 C 49,09 D 34,36 Cõu 17 t chỏy hon ton 7,2 gam kim loi M (cú hoỏ tr hai khụng i hp cht) hn hp khớ Cl2 v O2 Sau phn ng thu c 23,0 gam cht rn v th tớch hn hp khớ ó phn ng l 5,6 lớt ( ktc) Kim loi M l A Be B Cu C Ca D Mg Cõu 18 Trn 5,6 gam bt st vi 2,4 gam bt lu hunh ri nung núng (trong iu kin khụng cú khụng khớ), thu c hn hp rn M Cho M tỏc dng vi lng d dung dch HCl, gii phúng hn hp khớ X v cũn li mt phn khụng tan G t chỏy hon ton X v G cn va V lớt khớ O2 (ktc) Giỏ tr ca V l A 4,48 B 2,80 C 3,08 D 3,36 PHN NG NHIT LUYN Cõu 19 Cho lung khớ H2 (d) qua hn hp cỏc oxit CuO, Fe2O3, ZnO, MgO nung nhit cao Sau phn ng hn hp rn cũn li l: A Cu, Fe, ZnO, MgO B Cu, Fe, Zn, MgO C Cu, Fe, Zn, Mg D Cu, FeO, ZnO, MgO Cõu 20 Cho khớ CO (d) i vo ng s nung núng ng hn hp X gm Al2O3, MgO, Fe3O4, CuO thu c cht rn Y Cho Y vo dung dch NaOH (d), khuy k, thy cũn li phn khụng tan Z Gi s cỏc phn ng xy hon ton Phn khụng tan Z gm A MgO, Fe3O4, Cu B MgO, Fe, Cu C Mg, Fe, Cu D Mg, Al, Fe, Cu Cõu 21 Dn t t V lớt khớ CO ( ktc) i qua mt ng s ng lng d hn hp rn gm CuO, Fe2O3 ( nhit cao) Sau cỏc phn ng xy hon ton, thu c khớ X Dn ton b khớ X trờn vo lng d dung dch Ca(OH)2 thỡ to thnh gam kt ta Giỏ tr ca V l A 0,896 B 1,120 C 0,224 D 0,448 PHN LOI CC DNG CU HI TRONG THI HC 2007 -2008 -2009-2010 Cõu 22 Cho V lớt hn hp khớ ( ktc) gm CO v H2 phn ng vi mt lng d hn hp rn gm CuO v Fe3O4 nung núng Sau cỏc phn ng xy hon ton, lng hn hp rn gim 0,32 gam Giỏ tr ca V l A 0,224 B 0,560 C 0,112 D 0,448 Cõu 23 Cho lung khớ CO (d) i qua 9,1 gam hn hp gm CuO v Al2O3 nung núng n phn ng hon ton, thu c 8,3 gam cht rn Khi lng CuO cú hn hp ban u l A 0,8 gam B 8,3 gam C 4,0 gam D 2,0 gam Cõu 24 Cho 4,48 lớt khớ CO ( ktc) t t i qua ng s nung núng ng gam mt oxit st n phn ng xy hon ton Khớ thu c sau phn ng cú t so vi hiro bng 20 Cụng thc ca oxit st v phn trm th tớch ca khớ CO2 hn hp khớ sau phn ng A Fe2O3; 65% B Fe3O4; 75% C FeO; 75% D Fe2O3; 75% KIM LOI KIM - KLKT- NHễM ST IU CH - TINH CH Cõu 25 Trong cụng nghip, natri hiroxit c sn xut bng phng phỏp A in phõn dung dch NaCl, cú mng ngn in cc B in phõn dung dch NaNO3, khụng cú mng ngn in cc C in phõn NaCl núng chy D in phõn dung dch NaCl, khụng cú mng ngn in cc Cõu 26 Thc hin cỏc thớ nghim sau: (I) Cho dung dch NaCl vo dung dch KOH (II) Cho dung dch Na2CO3 vo dung dch Ca(OH)2 (III) in phõn dung dch NaCl vi in cc tr, cú mng ngn (IV) Cho Cu(OH)2 vo dung dch NaNO3 (V) Sc khớ NH3 vo dung dch Na2CO3 (VI) Cho dung dch Na2SO4 vo dung dch Ba(OH)2 Cỏc thớ nghim u iu ch c NaOH l: A II, V v VI B I, II v III C II, III v VI D I, IV v V Cõu 27 Phn ng hoỏ hc xy trng hp no di õy khụng thuc loi phn ng nhit nhụm? A Al tỏc dng vi Fe2O3 nung núng B Al tỏc dng vi CuO nung núng C Al tỏc dng vi Fe3O4 nung núng D Al tỏc dng vi axit H2SO4 c, núng Cõu 28 thu c Al2O3 t hn hp Al2O3 v Fe2O3, ngi ta ln lt: A dựng dung dch NaOH (d), dung dch HCl (d), ri nung núng B dựng dung dch NaOH (d), khớ CO2 (d), ri nung núng C dựng khớ H2 nhit cao, dung dch NaOH (d) D dựng khớ CO nhit cao, dung dch HCl (d) Cõu 29 Nguyờn tc luyn thộp t gang l: A Tng thờm hm lng cacbon gang thu c thộp B Dựng cht kh CO kh oxit st thnh st nhit cao C Dựng CaO hoc CaCO3 kh cht Si, P, S, Mn, gang thu c thộp D Dựng O2 oxi hoỏ cỏc cht Si, P, S, Mn, gang thu c thộp TNH CHT HểA HC S PHN NG Cõu 30 Cho dóy cỏc cht: NH4Cl, (NH4)2SO4, NaCl, MgCl2, FeCl2, AlCl3 S cht dóy tỏc dng vi lng d dung dch Ba(OH)2 to thnh kt ta l A B C D Cõu 31 Cho s phn ng: NaCl (X) NaHCO3 (Y) NaNO3 X v Y cú th l A NaOH v NaClO B NaClO3 v Na2CO3.C NaOH v Na2CO3 D Na2CO3 v NaClO Cõu 32 T hai mui X v Y thc hin cỏc phn ng sau: X o t X1 + CO2 X2 + Y X + Y1 l A CaCO3, NaHCO3 X1 + H2O B MgCO3, NaHCO3 Cõu 33 Mt mu nc cng cha cỏc ion: Ca2+, Mg2+, + H2O X2 X2 + 2Y X + Y2 + 2H2O Hai mui X, Y tng ng C CaCO3, NaHSO4 D BaCO3, Na2CO3 NC CNG HCO3- , Cl-, SO 2-4 Cht c dựng lm mm mu nc cng trờn l A H2SO4 B NaHCO3 C HCl D Na2CO3 Cõu 34 Hai cht c dựng lm mm nc cng vnh cu l A Na2CO3 v HCl B NaCl v Ca(OH)2 C Na2CO3 v Ca(OH)2 D Na2CO3 v Na3PO4 - Kl tỏc dng vi nc, axit, baz, mui Cõu 35 Cho mt mu hp kim Na-Ba tỏc dng vi nc (d), thu c dung dch X v 3,36 lớt H2 (ktc) Th tớch dung dch axit H2SO4 2M cn dựng trung ho dung dch X l A 30ml B 60ml C 75ml D 150ml Cõu 36 Khi cho 100ml dung dch KOH 1M vo 100ml dung dch HCl thu c dung dch cú cha 6,525 gam cht tan Nng mol (hoc mol/l) ca HCl dung dch ó dựng l A 0,5M B 1M C 0,75M D 0,25M Cõu 37 Chia m gam Al thnh hai phn bng nhau: - Phn mt tỏc dng vi lng d dung dch NaOH, sinh x mol khớ H2; - Phn hai tỏc dng vi lng d dung dch HNO loóng, sinh y mol khớ N2O (sn phm kh nht) Quan h gia x v y l A x = 4y B x = y C x = 2y D y = 2x Cõu 38 Cho hn hp gm Na v Al cú t l s mol tng ng l : vo nc (d) Sau cỏc phn ng xy hon ton, thu c 8,96 lớt khớ H2 ( ktc) v m gam cht rn khụng tan Giỏ tr ca m l A 5,4 B 43,2 C 7,8 D 10,8 Cõu 39 Hn hp X gm Na v Al Cho m gam X vo mt lng d nc thỡ thoỏt V lớt khớ Nu cng cho m gam X vo dung dch NaOH (d) thỡ c 1,75V lớt khớ Thnh phn phn trm theo lng ca Na X l (bit cỏc th tớch khớ o cựng iu kin) A 29,87% B 39,87% C 77,31% D 49,87% Cõu 40 Ho tan hon ton 2,9 gam hn hp gm kim loi M v oxit ca nú vo nc, thu c 500 ml dung dch cha mt cht tan cú nng 0,04M v 0,224 lớt khớ H2 ( ktc) Kim loi M l A Ba B Na C Ca D K PHN LOI CC DNG CU HI TRONG THI HC 2007 -2008 -2009-2010 Cõu 41 Ho tan hon ton 0,3 mol hn hp gm Al v Al4C3 vo dung dch KOH (d), thu c a mol hn hp khớ v dung dch X Sc khớ CO2 (d) vo dung dch X, lng kt ta thu c l 46,8 gam Giỏ tr ca a l A 0,40 B 0,45 C 0,60 D 0,55 CO2, SO2, P2O5 TC DNG VI DD KIM Cõu 42 Nung 13,4 gam hn hp mui cacbonat ca kim loi húa tr 2, thu c 6,8 gam cht rn v khớ X Lng khớ X sinh cho hp th vo 75 ml dung dch NaOH 1M, lng mui khan thu c sau phn ng l A 6,5 gam B 5,8 gam C 6,3 gam D 4,2 gam Cõu 43 Hp th hon ton 4,48 lớt khớ CO2 (ktc) vo 500 ml dung dch hn hp gm NaOH 0,1M v Ba(OH)2 0,2M, sinh m gam kt ta Giỏ tr ca m l A 11,82 B 19,70 C 9,85 D 17,73 Cõu 44 Cho 0,448 lớt khớ CO2 ( ktc) hp th ht vo 100 ml dung dch cha hn hp NaOH 0,06M v Ba(OH)2 0,12M, thu c m gam kt ta Giỏ tr ca m l A 1,182 B 2,364 C 3,940 D 1,970 Cõu 45 Hp th hon ton 2,688 lớt khớ CO2(ktc) vo 2,5 lớt dung dch Ba(OH)2 nng a mol/l, thu c 15,76 gam kt ta Giỏ tr ca a l A 0,048 B 0,06 C 0,04 D 0,032 Cõu 46 Cho 100 ml dung dch KOH 1,5M vo 200 ml dung dch H3PO4 0,5M, thu c dung dch X Cụ cn dung dch X, thu c hn hp gm cỏc cht l A KH2PO4 v K3PO4 B KH2PO4 v H3PO4 C KH2PO4 v K2HPO4 D K3PO4 v KOH Cõu 47 Cho 0,1 mol P2O5 vo dung dch cha 0,35 mol KOH Dung dch thu c cú cỏc cht: A K3PO4, K2HPO4 B K2HPO4, KH2PO4 C H3PO4, KH2PO4 D K3PO4, KOH CO32- TC DNG VI H+ Cõu 48 Cho t t dung dch cha a mol HCl vo dung dch cha b mol Na2CO3 ng thi khuy u, thu c V lớt khớ ( ktc) v dung dch X Khi cho d nc vụi vo dung dch X thy cú xut hin kt ta Biu thc liờn h gia V vi a, b l: A V = 11,2(a - b) B V = 22,4(a - b) C V = 22,4(a + b) D V = 11,2(a + b) Cõu 49 Dung dch X cha hn hp gm Na2CO3 1,5M v KHCO3 1M Nh t t tng git cho n ht 200 ml dung dch HCl 1M vo 100 ml dung dch X, sinh V lớt khớ ( ktc) Giỏ tr ca V l A 3,36 B 2,24 C 4,48 D 1,12 Cõu 50 Cho 1,9 gam hn hp mui cacbonat v hirocacbonat ca kim loi kim M tỏc dng ht vi dung dch HCl (d), sinh 0,448 lớt khớ ( ktc) Kim loi M l A Li B Rb C Na D K Cõu 51 Nhit phõn hon ton 40 gam mt loi qung ụlụmit cú ln cht tr sinh 8,96 lớt khớ CO2(ktc) Thnh phn phn trm v lng ca CaCO3.MgCO3 loi qung nờu trờn l A 84% B 50% C 92% D 40% - Tớnh lng tớnh ca Al(OH)3, Zn(OH)2 Cõu 52 Nh t t cho n d dung dch NaOH vo dung dch AlCl3 Hin tng xy l A ch cú kt ta keo trng B cú kt ta keo trng, sau ú kt ta tan C khụng cú kt ta, cú khớ bay lờn D cú kt ta keo trng v cú khớ bay lờn Cõu 53 Nh t t 0,25 lớt dung dch NaOH 1,04M vo dung dch gm 0,024 mol FeCl3; 0,016 mol Al2(SO4)3 v 0,04 mol H2SO4 thu c m gam kt ta Giỏ tr ca m l A 1,560 B 5,064 C 4,128 D 2,568 Cõu 54 Ho tan hon ton 47,4 gam phốn chua KAl(SO4)2.12H2O vo nc, thu c dung dch X Cho ton b X tỏc dng vi 200 ml dung dch Ba(OH)2 1M, sau phn ng thu c m gam kt ta Giỏ tr ca m l A 54,4 B 62,2 C 7,8 D 46,6 Cõu 55 Trn dung dch cha a mol AlCl3 vi dung dch cha b mol NaOH thu c kt ta thỡ cn cú t l A a : b > : B a : b < : C a : b = : D a : b = : Cõu 56 Cho 200 ml dung dch AlCl3 1,5M tỏc dng vi V lớt dung dch NaOH 0,5M, lng kt ta thu c l 15,6 gam Giỏ tr ln nht ca V l A B 1,2 C 1,8 D 2,4 Cõu 57 Cho V lớt dung dch NaOH 2M vo dung dch cha 0,1 mol Al2(SO4)3 v 0,1 mol H2SO4 n phn ng hon ton, thu c 7,8 gam kt ta Giỏ tr ln nht ca V thu c lng kt ta trờn l A 0,35 B 0,45 C 0,25 D 0,05 Cõu 58 Thờm m gam kali vo 300ml dung dch cha Ba(OH)2 0,1M v NaOH 0,1M thu c dung dch X Cho t t dung dch X vo 200ml dung dch Al2(SO4)3 0,1M thu c kt ta Y thu c lng kt ta Y ln nht thỡ giỏ tr ca m l A 1,95 B 1,71 C 1,59 D 1,17 Cõu 59 Ho tan ht m gam ZnSO4 vo nc c dung dch X Cho 110 ml dung dch KOH 2M vo X, thu c a gam kt ta Mt khỏc, nu cho 140 ml dung dch KOH 2M vo X thỡ cng thu c a gam kt ta Giỏ tr ca m l A 12,375 B 22,540 C 20,125 D 17,710 Cõu 60 Ho tan hon ton m gam hn hp X gm Na2O v Al2O3 vo H2O thu c 200 ml dung dch Y ch cha cht tan nht cú nng 0,5M Thi khớ CO2 (d) vo Y thu c a gam kt ta Giỏ tr ca m v a ln lt l A 8,2 v 7,8 B 13,3 v 3,9 C 8,3 v 7,2 D 11,3 v 7,8 PHN NG NHIT NHễM Cõu 61 iu ch c 78 gam Cr t Cr2O3 (d) bng phng phỏp nhit nhụm vi hiu sut ca phn ng l 90% thỡ lng bt nhụm cn dựng ti thiu l A 40,5 gam B 45,0 gam C 54,0 gam D 81,0 gam Cõu 62 Nung hn hp bt gm 15,2 gam Cr2O3 v m gam Al nhit cao Sau phn ng hon ton, thu c 23,3 gam hn hp rn X Cho ton b hn hp X phn ng vi axit HCl (d) thoỏt V lớt khớ H2 (ktc) Giỏ tr ca V l A 10,08 B 3,36 C 4,48 D 7,84 PHN LOI CC DNG CU HI TRONG THI HC 2007 -2008 -2009-2010 Cõu 63 Khi cho 41,4 gam hn hp X gm Fe2O3, Cr2O3 v Al2O3 tỏc dng vi dung dch NaOH c (d), sau phn ng thu c cht rn cú lng 16 gam kh hon ton 41,4 gam X bng phn ng nhit nhụm, phi dựng 10,8 gam Al Thnh phn phn trm theo lng ca Cr2O3 hn hp X l A 50,67% B 20,33% C 66,67% D 36,71% Cõu 64 Nung núng m gam hn hp Al v Fe2O3 (trong mụi trng khụng cú khụng khớ) n phn ng xy hon ton, thu c hn hp rn Y Chia Y thnh hai phn bng nhau: - Phn tỏc dng vi dung dch H2SO4 loóng (d), sinh 3,08 lớt khớ H2 (ktc); - Phn tỏc dng vi dung dch NaOH (d), sinh 0,84 lớt khớ H2 (ktc) Giỏ tr ca m l A 29,43 B 22,75 C 29,40 D 21,40 Cõu 65 Nung núng m gam hn hp gm Al v Fe3O4 iu kin khụng cú khụng khớ Sau phn ng xy hon ton, thu c hn hp rn X Cho X tỏc dng vi dung dch NaOH (d) thu c dung dch Y, cht rn Z v 3,36 lớt khớ H2 ( ktc) Sc khớ CO2 (d) vo dung dch Y, thu c 39 gam kt ta Giỏ tr ca m l A 45,6 B 36,7 C 48,3 D 36,7 Cõu 66 t núng mt hn hp gm Al v 16 gam Fe2O3 (trong iu kin khụng cú khụng khớ) n phn ng xy hon ton, thu c hn hp rn X Cho X tỏc dng va vi V ml dung dch NaOH 1M sinh 3,36 lớt H2 (ktc) Giỏ tr ca V l A 150 B 300 C 100 D 200 - Fe ỏp dng cụng thc kinh nghim.- Fe, Cu tỏc dng HNO3, H2SO4 c Cõu 67 Nung m gam bt st oxi, thu c gam hn hp cht rn X Hũa tan ht hn hp X dung dch HNO 3(d), thoỏt 0,56 lớt (ktc) NO (l sn phm kh nht) Giỏ tr ca m l A 2,32 B 2,22 C 2,62 D 2,52 Cõu 68 Cho 11,36 gam hn hp gm Fe, FeO, Fe2O3 v Fe3O4 phn ng ht vi dung dch HNO3 loóng (d), thu c 1,344 lớt khớ NO (sn phm kh nht, ktc) v dung dch X Cụ cn dung dch X thu c m gam mui khan Giỏ tr ca m l A 35,50 B 34,36 C 38,72 D 49,09 Cõu 69 Cho hn hp Fe, Cu phn ng vi dung dch HNO3 loóng Sau phn ng hon ton, thu c dung dch ch cha mt cht tan v kim loi d Cht tan ú l A Fe(NO3)3 B Fe(NO3)2 C Cu(NO3)2 D HNO3 Cõu 70 Cho hn hp X gm Mg v Fe vo dung dch axit H2SO4 c, núng n cỏc phn ng xy hon ton, thu c dung dch Y v mt phn Fe khụng tan Cht tan cú dung dch Y l A MgSO4 v FeSO4 B MgSO4 v Fe2(SO4)3 C MgSO4, Fe2(SO4)3 v FeSO4 D MgSO4 Cõu 71 Cho 6,72 gam Fe vo dung dch cha 0,3 mol H2SO4 c, núng (gi thit SO2 l sn phm kh nht) Sau phn ng xy hon ton, thu c A 0,03 mol Fe2(SO4)3 v 0,06 mol FeSO4 B 0,05 mol Fe2(SO4)3 v 0,02 mol Fe d C 0,02 mol Fe2(SO4)3 v 0,08 mol FeSO4 D 0,12 mol FeSO4 Cõu 72 Th tớch dung dch HNO3 1M (loóng) ớt nht cn dựng ho tan hon ton mt hn hp gm 0,15 mol Fe v 0,15 mol Cu l (bit phn ng to cht kh nht l NO) A 0,6 lớt B 1,0 lớt C 1,2 lớt D 0,8 lớt Cõu 73 Hũa tan hon ton 12 gam hn hp Fe, Cu (t l mol 1:1) bng axit HNO3, thu c V lớt (ktc) hn hp khớ X (gm NO v NO2) v dung dch Y (ch cha hai mui v axit d) T ca X i vi H2 bng 19 Giỏ tr ca V l A 2,24 B 3,36 C 5,60 D 4,48 Cõu 74 Cho 6,72 gam Fe vo 400 ml dung dch HNO3 1M, n phn ng xy hon ton, thu c khớ NO (sn phm kh nht) v dung dch X Dung dch X cú th ho tan ti a m gam Cu Giỏ tr ca m l A 3,84 B 3,20 C 1,92 D 0,64 Cõu 75 Cho 61,2 gam hn hp X gm Cu v Fe3O4 tỏc dng vi dung dch HNO3 loóng, un núng v khuy u Sau cỏc phn ng xy hon ton, thu c 3,36 lớt khớ NO (sn phm kh nht, ktc), dung dch Y v cũn li 2,4 gam kim loi Cụ cn dung dch Y, thu c m gam mui khan Giỏ tr ca m l A 97,5 B 137,1 C 108,9 D 151,5 HP CHT CA ST Cõu 76 Trong cỏc loi qung st, qung cú hm lng st cao nht l A hematit nõu B hematit C xierit D manhetit Cõu 77 Khi nung hn hp cỏc cht Fe(NO3)2, Fe(OH)3 v FeCO3 khụng khớ n lng khụng i, thu c mt cht rn l A Fe2O3 B Fe C FeO D Fe3O4 Cõu 78 Hũa tan hon ton Fe3O4 dung dch H2SO4 loóng (d) c dung dch X1 Cho lng d bt Fe vo dung dch X1 (trong iu kin khụng cú khụng khớ) n phn ng xy hon ton, thu c dung dch X2 cha cht tan l A FeSO4 B Fe2(SO4)3 v H2SO4 C FeSO4 v H2SO4 D Fe2(SO4)3 Cõu 79 Cho dóy cỏc cht: FeO, Fe(OH)2, FeSO4, Fe3O4, Fe2(SO4)3, Fe2O3 S cht dóy b oxi húa tỏc dng vi dung dch HNO3 c, núng l A B C D Cõu 80 Trong cỏc cht: FeCl2, FeCl3, Fe(NO3)2, Fe(NO3)3, FeSO4, Fe2(SO4)3 S cht cú c tớnh oxi hoỏ v tớnh kh l A B C D Cõu 81 Cho tng cht: Fe, FeO, Fe(OH)2, Fe(OH)3, Fe3O4, Fe2O3, Fe(NO3)2, Fe(NO3)3, FeSO4, Fe2(SO4)3 , FeCO3 ln lt phn ng vi HNO3 c, núng S phn ng thuc loi phn ng oxi hoỏ - kh l A B C D Cõu 82 Ho tan 5,6 gam Fe bng dung dch H2SO4 loóng (d), thu c dung dch X Dung dch X phn ng va vi V ml dung dch KMnO4 0,5M Giỏ tr ca V l A 80 B 20 C 40 D 60 Cõu 83 ho tan hon ton 2,32 gam hn hp gm FeO, Fe3O4 v Fe2O3 (trong ú s mol FeO bng s mol Fe2O3), cn dựng va V lớt dung dch HCl 1M Giỏ tr ca V l PHN LOI CC DNG CU HI TRONG THI HC 2007 -2008 -2009-2010 A 0,16 B 0,23 C 0,08 D 0,18 Cõu 84 Cho 9,12 gam hn hp gm FeO, Fe3O4 v Fe2O3 tỏc dng vi dung dch HCl (d) Sau cỏc phn ng xy hon ton, c dung dch Y; cụ cn Y thu c 7,62 gam FeCl2 v m gam FeCl3 Giỏ tr ca m l A 7,80 B 8,75 C 6,50 D 9,75 Cõu 85 Cho m gam hn hp X gm FeO, Fe2O3, Fe3O4 vo mt lng va dung dch HCl 2M, thu c dung dch Y cú t l s mol Fe2+ v Fe3+ l : Chia Y thnh hai phn bng Cụ cn phn mt thu c m1 gam mui khan Sc khớ clo (d) vo phn hai, cụ cn dung dch sau phn ng thu c m2 gam mui khan Bit m2 - m1 = 0,71 Th tớch dung dch HCl ó dựng l A 80 ml B 320 ml C 240 ml D 160 ml Cõu 86 Cho 11,36 gam hn hp gm Fe, FeO, Fe2O3 v Fe3O4 phn ng ht vi dung dch HNO3 loóng (d), thu c 1,344 lớt khớ NO (sn phm kh nht, ktc) v dung dch X Cụ cn dung dch X thu c m gam mui khan Giỏ tr ca m l A 34,36 B 35,50 C 38,72 D 49,09 Cõu 87 Hũa tan hon ton 20,88 gam mt oxit st bng dung dch H2SO4 c, núng thu c dung dch X v 3,248 lớt khớ SO2 (sn phm kh nht, ktc) Cụ cn dung dch X, thu c m gam mui sunfat khan Giỏ tr ca m l A 52,2 B 54,0 C 58,0 D 48,4 Cõu 88 Cho 0,01 mol mt hp cht ca st tỏc dng ht vi H2SO4 c núng (d), thoỏt 0,112 lớt (ktc) khớ SO2 l sn phm kh nht) Cụng thc ca hp cht st ú l A FeO B FeCO3 C FeS D FeS2 Cõu 89 Kh hon ton mt oxit st X nhit cao cn va V lớt khớ CO ( ktc), sau phn ng thu c 0,84 gam Fe v 0,02 mol khớ CO2 Cụng thc ca X v giỏ tr V ln lt l A Fe3O4 v 0,448 B FeO v 0,224 C Fe2O3 v 0,448 D Fe3O4 v 0,224 Cõu 90 Cho 4,48 lớt khớ CO ( ktc) t t i qua ng s nung núng ng gam mt oxit st n phn ng xy hon ton Khớ thu c sau phn ng cú t so vi hiro bng 20 Cụng thc ca oxit st v phn trm th tớch ca khớ CO2 hn hp khớ sau phn ng l A Fe2O3; 75% B FeO; 75% C Fe3O4; 75% D Fe2O3; 65% Cõu 91 Cho m gam Mg vo dung dch cha 0,12 mol FeCl3 Sau phn ng xy hon ton thu c 3,36 gam cht rn Giỏ tr ca m l A 5,04 B 4,32 C 2,88 D 2,16 Cõu 92 Cho 100 ml dung dch FeCl2 1,2M tỏc dng vi 200 ml dung dch AgNO3 2M, thu c m gam kt ta Giỏ tr ca m l A 34,44 B 12,96 C 30,18 D 47,4 Cõu 93 Ho tan hon ton 24,4 gam hn hp gm FeCl2 v NaCl (cú t l s mol tng ng l : 2) vo mt lng nc (d), thu c dung dch X Cho dung dch AgNO3 (d) vo dung dch X, sau phn ng xy hon ton sinh m gam cht rn Giỏ tr ca m l A 10,8 B 28,7 C 57,4 D 68,2 Cõu 94 Nung mt hn hp rn gm a mol FeCO3 v b mol FeS2 bỡnh kớn cha khụng khớ (d) Sau cỏc phn ng xy hon ton, a bỡnh v nhit ban u, thu c cht rn nht l Fe2O3 v hn hp khớ Bit ỏp sut khớ bỡnh trc v sau phn ng bng nhau, mi liờn h gia a v b l (bit sau cỏc phn ng, lu hunh mc oxi hoỏ +4) A a = 2b B a = 4b C a = b D a = 0,5b Cõu 95 Trn 5,6 gam bt st vi 2,4 gam bt lu hunh ri nung núng (trong iu kin khụng cú khụng khớ), thu c hn hp rn M Cho M tỏc dng vi lng d dung dch HCl, gii phúng hn hp khớ X v cũn li mt phn khụng tan G t chỏy hon ton X v G cn va V lớt khớ O2 ( ktc) Giỏ tr ca V l A 3,08 B 2,80 C 3,36 D 4,48 CROM-NG-NIKEN-CHè KM VNG-THIT Cõu 96 Phỏt biu khụng ỳng l: A Hp cht Cr(II) cú tớnh kh c trng cũn hp cht Cr(VI) cú tớnh oxi hoỏ mnh B Thờm dung dch kim vo mui icromat, mui ny chuyn thnh mui cromat C Cỏc hp cht Cr2O3, Cr(OH)3, CrO, Cr(OH)2 u cú tớnh cht lng tớnh D Cỏc hp cht CrO, Cr(OH)2 tỏc dng c vi dung dch HCl cũn CrO3 tỏc dng c vi dung dch NaOH Cõu 97 Cho s chuyn hoỏ gia cỏc hp cht ca crom: + (Cl2 + KOH) + H 2SO + FeSO + H 2SO + KOH Cr(OH)3 X Y Z T Cỏc cht X, Y, Z, T theo th t ln lt l: A K2CrO4; KCrO2; K2Cr2O7; Cr2(SO4)3 B KCrO2; K2CrO4; K2Cr2O7; Cr2(SO4)3 C KCrO2; K2Cr2O7; K2CrO4; CrSO4 D KCrO2; K2Cr2O7; K2CrO4; Cr2(SO4)3 Cõu 98 Cho cỏc dung dch: HCl, NaOH c, NH3, KCl S dung dch phn ng c vi Cu(OH)2 l A B C D Cõu 99 Cho cỏc phn ng: (1) Cu2O + Cu2S (3) CuO + CO o t (2) Cu(NO3)2 o t o t (4) CuO + NH3 o t S phn ng to kim loi Cu l : A B C D Cõu 100 Trng hp xy phn ng l A Cu + HCl (loóng) B.Cu + H2SO4 (loóng) C Cu + HCl (loóng) + O2 D Cu + Pb(NO3)2 (loóng) Cõu 101 Cho s chuyn húa qung ng thnh ng : 0 + O2 ,t + O ,t + X,t CuFeS2 X Y Cu Hai cht X, Y ln lt l A CuS, CuO B Cu2S, Cu2O C Cu2S, CuO D Cu2O, CuO Cõu 102 iu ch c 78 gam Cr t Cr2O3 (d) bng phng phỏp nhit nhụm vi hiu sut ca phn ng l 90% thỡ lng bt nhụm cn dựng ti thiu l PHN LOI CC DNG CU HI TRONG THI HC 2007 -2008 -2009-2010 A 45,0 gam B 40,5 gam C 81,0 gam D 54,0 gam Cõu 103 Nung hn hp bt gm 15,2 gam Cr2O3 v m gam Al nhit cao Sau phn ng hon ton, thu c 23,3 gam hn hp rn X Cho ton b hn hp X phn ng vi axit HCl (d) thoỏt V lớt khớ H2 (ktc) Giỏ tr ca V l A 4,48 B 7,84 C 3,36 D 10,08 Cõu 104 Khi cho 41,4 gam hn hp X gm Fe2O3, Cr2O3 v Al2O3 tỏc dng vi dung dch NaOH c (d), sau phn ng thu c cht rn cú lng 16 gam kh hon ton 41,4 gam X bng phn ng nhit nhụm, phi dựng 10,8 gam Al Thnh phn phn trm theo lng ca Cr2O3 hn hp X l A 20,33% B 50,67% C 66,67% D 36,71% Cõu 105 oxi húa hon ton 0,01 mol CrCl3 thnh K2CrO4 bng Cl2 cú mt KOH, lng ti thiu Cl2 v KOH tng ng l A 0,03 mol v 0,04 mol B 0,03 mol v 0,08 mol C 0,015 mol v 0,08 mol D 0,015 mol v 0,04 mol Cõu 106 Hũa tan hon ton 1,23 gam hn hp X gm Cu v Al vo dung dch HNO3 c, núng thu c 1,344 lớt khớ NO2 (sn phm kh nht, ktc) v dung dch Y Sc t t khớ NH3 (d) vo dung dch Y, sau phn ng xy hon ton thu c m gam kt ta Phn trm v lng ca Cu hn hp X v giỏ tr ca m ln lt l A 78,05% v 2,25 B 21,95% v 2,25 C 21,95% v 0,78 D 78,05% v 0,78 Cõu 107 Ho tan hon ton 14,6 gam hn hp X gm Al v Sn bng dung dch HCl (d), thu c 5,6 lớt khớ H2 ( ktc) Th tớch khớ O2 ( ktc) cn phn ng hon ton vi 14,6 gam hn hp X l A 2,80 lớt B 3,92 lớt C 4,48 lớt D 1,68 lớt Cõu 108 Khi ho tan hon ton 0,02 mol Au bng nc cng toan thỡ s mol HCl phn ng v s mol NO (sn phm kh nht) to thnh ln lt l A 0,06 v 0,01 B 0,03 v 0,02 C 0,06 v 0,02 D 0,03 v 0,01 Cõu 109 Nung núng m gam PbS ngoi khụng khớ sau mt thi gian, thu c hn hp rn (cú cha mt oxit) nng 0,95m gam Phn trm lng PbS ó b t chỏy l A 74,69% B 64,68% C 95,00% D 25,31% Tng hp ni dung cỏc kin thc húa vụ c thuc chng trỡnh ph thụng: Cõu 110 Cú th dựng NaOH ( th rn) lm khụ cỏc cht khớ A NH3, O2, N2, CH4, H2 B N2, NO2, CO2, CH4, H2 C NH3, SO2, CO, Cl2 D N2, Cl2, O2, CO2, H2 Cõu 111 Cht dựng lm khụ khớ Cl2 m l A dung dch NaOH B nc brom C dung dch Ba(OH)2 D CaO Cõu 112 thu ly Ag tinh khit t hn hp X (gm a mol Al2O3, b mol CuO, c mol Ag2O), ngi ta ho tan X bi dung dch cha (6a + 2b + 2c) mol HNO3 c dung dch Y, sau ú thờm (gi thit hiu sut cỏc phn ng u l 100%) A 2c mol bt Cu vo Y B c mol bt Al vo Y C 2c mol bt Al vo Y D c mol bt Cu vo Y Cõu 113 phõn bit CO2 v SO2 ch cn dựng thuc th l A dung dch NaOH B nc brom C dung dch Ba(OH)2 D CaO Cõu 114 nhn bit ba axit c, ngui: HCl, H2SO4, HNO3 ng riờng bit ba l b mt nhón, ta dựng thuc th l A Al B Cu C Fe D CuO Cõu 115 Cú th phõn bit dung dch: KOH, HCl, H2SO4 (loóng) bng mt thuc th l A giy qu tớm B Al C BaCO3 D Zn Cõu 116 Ch dựng dung dch KOH phõn bit c cỏc cht riờng bit nhúm no sau õy? A Mg, K, Na B Fe, Al2O3, Mg C Zn, Al2O3, Al D Mg, Al2O3, Al Cõu 117 Hn hp X cha Na2O, NH4Cl, NaHCO3 v BaCl2 cú s mol mi cht u bng Cho hn hp X vo H2O (d), un núng, dung dch thu c cha A NaCl, NaOH B NaCl, NaHCO3, NH4Cl, BaCl2 C NaCl, NaOH, BaCl2.D NaCl Cõu 118 Cho bn hn hp, mi hn hp gm hai cht rn cú s mol bng nhau: Na2O v Al2O3; Cu v FeCl3; BaCl2 v CuSO4; Ba v NaHCO3 S hn hp cú th tan hon ton nc (d) ch to dung dch l A B C D Cõu 119 Cú dung dch mui riờng bit: CuCl2, ZnCl2, FeCl3, AlCl3 Nu thờm dung dch KOH (d) ri thờm tip dung dch NH3 (d) vo dung dch trờn thỡ s cht kt ta thu c l A B C D Cõu 120 Trong cỏc dung dch: HNO3, NaCl, Na2SO4, Ca(OH)2, KHSO4, Mg(NO3)2 dóy gm cỏc cht u tỏc dng c vi dung dch Ba(HCO3)2 l: A NaCl, Na2SO4, Ca(OH)2 B HNO3, NaCl, Na2SO4 C HNO3, Ca(OH)2, KHSO4, Na2SO4 D HNO3, Ca(OH)2, KHSO4, Mg(NO3)2 Cõu 121 Cho cỏc dung dch: HCl, NaOH c, NH3, KCl S dung dch phn ng c vi Cu(OH)2 l A B C D Cõu 122 Hn hp rn X gm Al, Fe2O3 v Cu cú s mol bng Hn hp X tan hon ton dung dch A AgNO3 (d) B HCl (d) C NH3 (d) D NaOH (d) Cõu 123 Cho dóy cỏc cht: KOH, Ca(NO3)2, SO3, NaHSO4, Na2SO3, K2SO4 S cht dóy to thnh kt ta phn ng vi dung dch BaCl2 l A B C D Cõu 124 Cú nm dung dch ng riờng bit nm ng nghim: (NH4)2SO4, FeCl2, Cr(NO3)3, K2CO3, Al(NO3)3 Cho dung dch Ba(OH)2 n d vo nm dung dch trờn Sau phn ng kt thỳc, s ng nghim cú kt ta l A B C D Cõu 125 Thớ nghim no sau õy cú kt ta sau phn ng? A Cho dung dch HCl n d vo dung dch NaAlO2 (hoc Na[Al(OH)4]) B Thi CO2 n d vo dung dch Ca(OH)2 C Cho dung dch NaOH n d vo dung dch Cr(NO3)3 D Cho dung dch NH3 n d vo dung dch AlCl3 Cõu 126 Cỏc khớ cú th cựng tn ti mt hn hp l A H2S v Cl2 B HI v O3 C NH3 v HCl D Cl2 v O2 PHN LOI CC DNG CU HI TRONG THI HC 2007 -2008 -2009-2010 Cõu 127 Dóy gm cỏc ion (khụng k n s phõn li ca nc) cựng tn ti mt dung dch l: A Al3+, NH +4 , Br-, OH- B H+, Fe3+, 23NO3- , SO 24 C Mg2+, K+, SO , PO D Ag+, Na+, NO3 , Cl- Cõu 128 Trng hp no sau õy khụng xy phn ng hoỏ hc? A Sc khớ H2S vo dung dch CuCl2 B Cho Fe vo dung dch H2SO4 loóng, ngui C Sc khớ Cl2 vo dung dch FeCl2 D Sc khớ H2S vo dung dch FeCl2 Cõu 129 Cú cỏc thớ nghim sau: (I) Nhỳng st vo dung dch H2SO4 loóng, ngui (II) Sc khớ SO2 vo nc brom (III) Sc khớ CO2 vo nc Gia-ven.(IV) Nhỳng lỏ nhụm vo dung dch H2SO4 c, ngui S thớ nghim xy phn ng hoỏ hc l A B C D Cõu 130 Ho tan m gam hn hp gm Al, Fe vo dung dch H2SO4 loóng (d) Sau cỏc phn ng xy hon ton, thu c dung dch X Cho dung dch Ba(OH)2 (d) vo dung dch X, thu c kt ta Y Nung Y khụng khớ n lng khụng i, thu c cht rn Z l A hn hp gm BaSO4 v Fe2O3 B hn hp gm BaSO4 v FeO C hn hp gm Al2O3 v Fe2O3 D Fe2O3 Cõu 131 Cho cỏc phn ng sau : H2S + O2 (d) t Khớ X + H2O NH3 + O2 850 C,Pt Khớ Y + H2O NH4HCO3 + HCl loóng Khớ Z + NH4Cl + H2O.Cỏc khớ X, Y, Z thu c ln lt l A SO2, NO, CO2 B SO3, NO, NH3 C SO3, N2, CO2 D SO2, N2, NH3 Cõu 132 Cho s chuyn hoỏ (mi mi tờn l mt phng trỡnh phn ng): + dd X + dd Y + dd Z NaOH Fe(OH) Fe (SO ) BaSO Cỏc dd (dung dch) X, Y, Z ln lt l: A FeCl2, H2SO4 c núng, BaCl2 B FeCl3, H2SO4 (c, núng), Ba(NO3)2 C FeCl3, H2SO4 c núng, BaCl2 D FeCl3, H2SO4 c núng, Ba(NO3)2 Cõu 133 Khi nhit phõn hon ton tng mui X, Y thỡ u to s mol khớ nh hn s mol mui tng ng t mt lng nh tinh th Y trờn ốn khớ khụng mu, thy ngn la cú mu vng Hai mui X, Y ln lt l: A KMnO4, NaNO3 B NaNO3, KNO3 C Cu(NO3)2, NaNO3 D CaCO3, NaNO3 Cõu 134 Cho kim loi M tỏc dng vi Cl2 c mui X; cho kim loi M tỏc dng vi dung dch HCl c mui Y Nu cho kim loi M tỏc dng vi dung dch mui X ta cng c mui Y Kim loi M cú th l A Mg B Al C Fe D Zn HểA HC MễI TRNG Cõu 135 T l s ngi cht v bnh phi hỳt thuc lỏ gp hng chc ln s ngi khụng hỳt thuc lỏ Cht gõy nghin v gõy ung th cú thuc lỏ l A aspirin B moocphin C nicotin D cafein Cõu 136 Dóy gm cỏc cht v thuc u cú th gõy nghin cho ngi l A heroin, seduxen, erythromixin B penixilin, paradol, cocain C cocain, seduxen, cafein D ampixilin, erythromixin, cafein Cõu 137 Tỏc nhõn ch yu gõy ma axit l A SO2 v NO2 B CH4 v NH3 C CO v CH4 D CO v CO2 Cõu 138 Hi thu ngõn rt c, bi vy lm v nhit k thu ngõn thỡ cht bt c dựng rc lờn thu ngõn ri gom li l A lu hunh B cỏt C mui n D vụi sng NGUYấN T- BTH-LIấN KT HểA HC Cõu 139 Mt nguyờn t ca nguyờn t X cú tng s ht proton, ntron, electron l 52 v cú s l 35 S hiu nguyờn t ca nguyờn t X l A 17 B 15 C 23 D 18 Cõu 140 Trong hp cht ion XY (X l kim loi, Y l phi kim), s electron ca cation bng s electron ca anion v tng s electron XY l 20 Bit mi hp cht, Y ch cú mt mc oxi húa nht Cụng thc XY l A NaF B AlN C MgO D LiF Cõu 141 Nguyờn t ca nguyờn t X cú tng s ht electron cỏc phõn lp p l S ht mang in ca mt nguyờn t Y nhiu hn s ht mang in ca mt nguyờn t X l ht Cỏc nguyờn t X v Y ln lt l (bit s hiu nguyờn t ca nguyờn t: Na = 11; Al = 13; P = 15; Cl = 17; Fe = 26) A Al v P B Fe v Cl C Al v Cl D Na v Cl Cõu 142 Trong t nhiờn, nguyờn t ng cú hai ng v l phn trm tng s nguyờn t ca ng v 65 29 63 29 Cu v 6529 Cu Nguyờn t trung bỡnh ca ng l 63,54 Thnh phn Cu l A 73% B 54% C 50 D 27% Cõu 143 Dóy gm cỏc ion X+, Y- v nguyờn t Z u cú cu hỡnh electron 1s22s22p6 l: A K+, Cl-, Ar B Na+, F-, Ne C Na+, Cl-, Ar D Li+, F-, Ne Cõu 144 Anion X- v cation Y2+ u cú cu hỡnh electron lp ngoi cựng l 3s23p6 V trớ ca cỏc nguyờn t bng tun hon cỏc nguyờn t húa hc l: A X cú s th t 17, chu k 3, nhúm VIIA (phõn nhúm chớnh nhúm VII); Y cú s th t 20, chu k 4, nhúm IIA B X cú s th t 18, chu k 3, nhúm VIIA (phõn nhúm chớnh nhúm VII); Y cú s th t 20, chu k 3, nhúm IIA C X cú s th t 17, chu k 4, nhúm VIIA (phõn nhúm chớnh nhúm VII); Y cú s th t 20, chu k 4, nhúm IIA D X cú s th t 18, chu k 3, nhúm VIA (phõn nhúm chớnh nhúm VI); Y cú s th t 20, chu k 4, nhúm IIA Cõu 145 Cu hỡnh electron ca ion X2+ l 1s22s22p63s23p63d6 Trong bng tun hon cỏc nguyờn t hoỏ hc, nguyờn t X thuc A chu kỡ 3, nhúm VIB B chu kỡ 4, nhúm VIIIB C chu kỡ 4, nhúm IIA D chu kỡ 4, nhúm VIIIA PHN LOI CC DNG CU HI TRONG THI HC 2007 -2008 -2009-2010 Cõu 146 Nguyờn t ca nguyờn t X cú electron mc nng lng cao nht l 3p Nguyờn t ca nguyờn t Y cng cú electron mc nng lng 3p v cú mt electron lp ngoi cựng Nguyờn t X v Y cú s electron hn kộm l Nguyờn t X, Y ln lt l A khớ him v kim loi B kim loi v kim loi C phi kim v kim loi D kim loi v khớ him Cõu 147 Trong mt nhúm A , tr nhúm VIIIA (phõn nhúm chớnh nhúm VIII), theo chiu tng ca in tớch ht nhõn nguyờn t thỡ A tớnh kim loi tng dn, õm in tng dn B tớnh kim loi tng dn, bỏn kớnh nguyờn t gim dn C õm in gim dn, tớnh phi kim tng dn D tớnh phi kim gim dn, bỏn kớnh nguyờn t tng dn Cõu 148 Cho cỏc nguyờn t M (Z = 11), X (Z = 17), Y (Z = 9) v R (Z = 19) õm in ca cỏc nguyờn t tng dn theo th t A R < M < X < Y B M < X < R < Y C Y < M < X < R D M < X < Y < R Cõu 149 Bỏn kớnh nguyờn t ca cỏc nguyờn t: 3Li, 8O, 9F, 11Na c xp theo th t tng dn t trỏi sang phi l A F, Li, O, Na B F, Na, O, Li C Li, Na, O, F D F, O, Li, Na Cõu 150 Cho cỏc nguyờn t: K (Z = 19), N (Z = 7), Si (Z = 14), Mg (Z = 12) Dóy gm cỏc nguyờn t c sp xp theo chiu gim dn bỏn kớnh nguyờn t t trỏi sang phi l: A K, Mg, N, Si B Mg, K, Si, N C K, Mg, Si, N D N, Si, Mg, K Cõu 151 Dóy cỏc nguyờn t sp xp theo chiu tng dn tớnh phi kim t trỏi sang phi l: A P, N, O, F B P, N, F, O C N, P, F, O D N, P, O, F Cõu 152 Cụng thc phõn t ca hp cht khớ to bi nguyờn t R v hiro l RH3 Trong oxit m R cú hoỏ tr cao nht thỡ oxi chim 74,07% v lng Nguyờn t R l A As B S C N D P Cõu 153 Nguyờn t ca nguyờn t X cú cu hỡnh electron lp ngoi cựng l ns2np4 Trong hp cht khớ ca nguyờn t X vi hiro, X chim 94,12% lng Phn trm lng ca nguyờn t X oxit cao nht l A 40,00% B 50,00% C 27,27% D 60,00% Cõu 154 Hp cht phõn t cú liờn kt ion l A NH4Cl B HCl C NH3 D H2O Cõu 155 Dóy gm cỏc cht phõn t ch cú liờn kt cng hoỏ tr phõn cc l: A HCl, O3, H2S B H2O, HF, H2S C O2, H2O, NH3 D HF, Cl2, H2O Cõu 156 Nguyờn t ca nguyờn t X cú cu hỡnh electron 1s22s22p63s23p64s1, nguyờn t ca nguyờn t Y cú cu hỡnh electron 1s22s22p5 Liờn kt hoỏ hc gia nguyờn t X v nguyờn t Y thuc loi liờn kt A cho nhn B kim loi C cng hoỏ tr D ion Cõu 157 Phỏt biu no sau õy l ỳng ? A th rn, NaCl tn ti di dng tinh th phõn t B Photpho trng cú cu trỳc tinh th nguyờn t C Kim cng cú cu trỳc tinh th phõn t D Nc ỏ thuc loi tinh th phõn t PHN NG OXH KH- TC P- CBHH Cõu 158 Cho cỏc phn ng sau: a) FeO + HNO3 (c, núng) b) FeS + H2SO4 (c, núng) c) Al2O3 + HNO3 (c, núng) d) Cu + dung dch FeCl3 e) CH3CHO + H2 f) glucoz + AgNO3 dung dch NH3 g) C2H4 + Br2 h) glixerol (glixerin) + Cu(OH)2 Dóy gm cỏc phn ng u thuc loi phn ng oxi húa - kh l: A a, b, d, e, f, h B a, b, c, d, e, h C a, b, c, d, e, g D a, b, d, e, f, g Cõu 159 Cho tng cht: Fe, FeO, Fe(OH)2, Fe(OH)3, Fe3O4, Fe2O3, Fe(NO3)2, Fe(NO3)3, FeSO4, Fe2(SO4)3, FeCO3 ln lt phn ng vi HNO3 c, núng S phn ng thuc loi phn ng oxi hoỏ - kh l A B C D Cõu 160 Cho cỏc phn ng: Ca(OH)2 + Cl2 2H2S + SO2 CaOCl2 3S + 2H2O 2NO2 + 2NaOH 4KClO3 + SO2 NaNO3 + NaNO2 + H2O 3S + 2H2O O3 O2 + O.S phn ng oxi hoỏ kh l A B C D Cõu 161 Tng h s (cỏc s nguyờn, ti gin) ca tt c cỏc cht phng trỡnh phn ng gia Cu vi dung dch HNO3 c, núng l A 11 B 10 C D Cõu 162 Cho phng trỡnh hoỏ hc: Fe3O4 + HNO3 Fe(NO3)3 + NxOy + H2O Sau cõn bng phng trỡnh hoỏ hc trờn vi h s ca cỏc cht l nhng s nguyờn, ti gin thỡ h s ca HNO3 l A 45x - 18y B 46x - 18y C 13x - 9y D 23x - 9y Cõu 163 Trong phn ng t chỏy CuFeS2 to sn phm CuO, Fe2O3 v SO2 thỡ mt phõn t CuFeS2 s A nhn 13 electron B nhng 13 electron C nhng 12 electron D nhn 12 electron Cõu 164 Cho bit cỏc phn ng xy sau: 2FeBr2 + Br2 2FeBr3 2NaBr + Cl2 2NaCl + Br2.Phỏt biu ỳng l: A Tớnh kh ca Cl- mnh hn ca Br - B Tớnh kh ca Br- mnh hn ca Fe2+ C Tớnh oxi húa ca Br2 mnh hn ca Cl2 D Tớnh oxi húa ca Cl2 mnh hn ca Fe3+ Cõu 165 Cho dóy cỏc cht v ion: Zn, S, FeO, SO2, N2, HCl, Cu2+, Cl- S cht v ion cú c tớnh oxi húa v tớnh kh l A B C D Cõu 166 Cho dóy cỏc cht v ion: Cl2, F2, SO2, Na+, Ca2+, Fe2+, Al3+, Mn2+, S2-, Cl- S cht v ion dóy u cú tớnh oxi hoỏ v tớnh kh l A B C D Cõu 167 Cho cht xỳc tỏc MnO2 vo 100 ml dung dch H2O2, sau 60 giõy thu c 33,6 ml khớ O2 ( ktc) Tc trung bỡnh ca phn ng (tớnh theo H2O2) 60 giõy trờn l PHN LOI CC DNG CU HI TRONG THI HC 2007 -2008 -2009-2010 A 5,0.104 mol/(l.s) B 2,5.104 mol/(l.s) C 5,0.105 mol/(l.s) Cõu 168 Cho phng trỡnh húa hc ca phn ng tng hp amoniac D 5,0.103 mol/(l.s) to 2NH (k) N (k) + 3H (k) xt Khi tng nng ca hiro lờn ln, tc phn ng thun: A tng lờn ln B tng lờn ln C gim i ln D tng lờn ln Cõu 171 Cho cõn bng húa hc: 2SO2 (k) + O2 (k) 2SO3 (k); phn ng thun l phn ng ta nhit Phỏt biu ỳng l: A Cõn bng chuyn dch theo chiu thun tng nhit B Cõn bng chuyn dch theo chiu nghch gim nng O2 C Cõn bng chuyn dch theo chiu thun gim ỏp sut h phn ng D Cõn bng chuyn dch theo chiu nghch gim nng SO3 Cõu 172 Cho cõn bng (trong bỡnh kớn) sau: CO (k) + H2O (k) CO2 (k) + H2 (k) H < Trong cỏc yu t: (1) tng nhit ; (2) thờm mt lng hi nc; (3) thờm mt lng H2; (4) tng ỏp sut chung ca h; (5) dựng cht xỳc tỏc Dóy gm cỏc yu t u lm thay i cõn bng ca h l: A (1), (4), (5) B (1), (2), (3) C (1), (2), (4) D (2), (3), (4) 2NH3 (k); phn ng thun l phn ng to nhit Cõn bng hoỏ hc khụng Cõu 173 Cho cõn bng hoỏ hc: N2 (k) + 3H2 (k) b chuyn dch A thay i ỏp sut ca h B thay i nhit Cõu 174 Cho cỏc cõn bng hoỏ hc: C thờm cht xỳc tỏc Fe N2 (k) + 3H2 (k) 2HI (k)(2) H2 (k) + I2 (k) 2NH3 (k)(1) D thay i nng N2 2SO3 (k)(3) 2SO2 (k) + O2 (k) N2O4 (k)(4) 2NO2 (k) Khi thay i ỏp sut nhng cõn bng húa hc b chuyn dch l: A (1), (2), (4) B (1), (3), (4) Cõu 175 Cho cỏc cõn bng sau: C (1), (2), (3) 2SO3(k) (1) 2SO2(k) + O2(k) (2) N2 (k) + 3H2 (k) CO(k) + H2O(k) (3) CO2(k) + H2(k) H2 (k) + I2 (k) (4) 2HI (k) Khi thay i ỏp sut, nhúm gm cỏc cõn bng hoỏ hc u khụng b chuyn dch l A (1) v (3) B (1) v (2) C (2) v (4) Cõu 176 Cho cõn bng sau bỡnh kớn: 2NO2 D (2), (3), (4) 2NH3 (k) D (3) v (4) N2O4 (mu nõu ) (khụng mu) Bit h nhit ca bỡnh thỡ mu nõu nht dn Phn ng thun cú: A H < 0, phn ng thu nhit B H < 0, phn ng to nhit C H > 0, phn ng to nhit D H > 0, phn ng thu nhit Cõu 177 Hng s cõn bng ca phn ng xỏc nh ch ph thuc vo A nhit B nng C ỏp sut D cht xỳc tỏc S IN LI Cõu 178 Dung dch HCl v dung dch CH3COOH cú cựng nng mol/l, pH ca hai dung dch tng ng l x v y Quan h gia x v y l (gi thit, c 100 phõn t CH3COOH thỡ cú phõn t in li) A y = 2x B y = x + C y = x - D y = 100x Cõu 179 Cho dung dch X cha hn hp gm CH3COOH 0,1M v CH3COONa 0,1M Bit 25 oC, Ka ca CH3COOH l 1,75.10-5 v b qua s phõn li ca nc Giỏ tr pH ca dung dch X 25 oC l A 2,88 B 4,76 C 1,00 D 4,24 Cõu 180 Cho dóy cỏc cht: KAl(SO4)2.12H2O, C2H5OH, C12H22O11 (saccaroz), CH3COOH, Ca(OH)2, CH3COONH4 S cht in li l A B C D Cõu 181 Cho dóy cỏc cht: Ca(HCO3)2, NH4Cl, (NH4)2CO3, ZnSO4, Al(OH)3, Zn(OH)2 S cht dóy cú tớnh cht lng tớnh l A B C D Cõu 182 Cho dóy cỏc cht: Cr(OH)3, Al2(SO4)3, Mg(OH)2, Zn(OH)2, MgO, CrO3 S cht dóycú tớnh cht lng tớnh l A B C D Cõu 183 Cỏc hp cht dóy cht no di õy u cú tớnh lng tớnh? A Cr(OH)3, Fe(OH)2, Mg(OH)2 B Cr(OH)3, Zn(OH)2, Mg(OH)2 C Cr(OH)3, Pb(OH)2, Mg(OH)2 D Cr(OH)3, Zn(OH)2, Pb(OH)2 Cõu 184 Cho cỏc cht: Al, Al2O3, Al2(SO4)3, Zn(OH)2, NaHS, K2SO3, (NH4)2CO3 S cht u phn ng c vi dung dch HCl, dung dch NaOH l A B C D PHN LOI CC DNG CU HI TRONG THI HC 2007 -2008 -2009-2010 Cõu 185 Dóy gm cỏc cht va tan dung dch HCl, va tan dung dch NaOH l: A NaHCO3, MgO, Ca(HCO3)2 B NaHCO3, ZnO, Mg(OH)2 C Mg(OH)2, Al2O3, Ca(HCO3)2 D NaHCO3, Ca(HCO3)2, Al2O3 Cõu 186 Trong s cỏc dung dch: Na2CO3, KCl, CH3COONa, NH4Cl, NaHSO4, C6H5ONa, nhng dung dch cú pH > l A KCl, C6H5ONa, CH3COONa B NH4Cl, CH3COONa, NaHSO4 C Na2CO3, NH4Cl, KCl D Na2CO3, C6H5ONa, CH3COONa Cõu 187 Cho cỏc dung dch cú cựng nng : Na2CO3 (1), H2SO4 (2), HCl (3), KNO3 (4) Giỏ tr pH ca cỏc dung dch c sp xp theo chiu tng t trỏi sang phi l: A (2), (3), (4), (1) B (1), (2), (3), (4) C (3), (2), (4), (1) D (4), (1), (2), (3) HN HP AXIT TC DNG VI HH BAZO-PTION THU GN-BTT Cõu 188 Cho phn ng: (1) Fe + 2HCl FeCl2 + H2 (2) 2NaOH + (NH4)2SO4 Na2SO4 + 2NH3 + 2H2O (3) BaCl2 + Na2CO3 BaCO3 + 2NaCl (4) 2NH3 + 2H2O + FeSO4 Fe(OH)2 + (NH4)2SO4 Cỏc phn ng thuc loi phn ng axit - baz l A (2), (4) B (1), (2) C (3), (4) D (2), (3) Cõu 189 Cho cỏc phn ng húa hc sau: (1) (NH4)2SO4 + BaCl2 (2) CuSO4 + Ba(NO3)2 (3) Na2SO4 + BaCl2 (4) H2SO4 + BaSO3 (5) (NH4)2SO4 + Ba(OH)2 (6) Fe2(SO4)3 + Ba(NO3)2 Cỏc phn ng u cú cựng mt phng trỡnh ion rỳt gn l: A (1), (2), (3), (6) B (3), (4), (5), (6) C (1), (3), (5), (6) D (2), (3), (4), (6) Cõu 190 Trn ln V ml dung dch NaOH 0,01M vi V ml dung dch HCl 0,03 M c 2V ml dung dch Y Dung dch Y cú pH l A B C D Cõu 191 Trn 100 ml dung dch (gm Ba(OH)2 0,1M v NaOH 0,1M) vi 400 ml dung dch (gm H2SO4 0,0375M v HCl 0,0125M), thu c dung dch X Giỏ tr pH ca dung dch X l A B C D Cõu 192 Trn 100 ml dung dch hn hp gm H2SO4 0,05M v HCl 0,1M vi 100 ml dung dch hn hp gm NaOH 0,2M v Ba(OH)2 0,1M, thu c dung dch X Dung dch X cú pH l A 1,0 B 12,8 C 1,2 D 13,0 Cõu 193 Trn 100 ml dung dch cú pH = gm HCl v HNO3 vi 100 ml dung dch NaOH nng a (mol/l) thu c 200 ml dung dch cú pH = 12 Giỏ tr ca a l A 0,12 B 0,15 C 0,03 D 0,30 Cõu 194 Cho dung dch cha 0,1 mol (NH4)2CO3 tỏc dng vi dung dch cha 34,2 gam Ba(OH)2 Sau phn ng thu c m gam kt ta Giỏ tr ca m l A 17,1 B 19,7 C 15,5 D 39,4 Cõu 195 Mt dung dch cha 0,02 mol Cu2+, 0,03 mol K+, x mol Cl- v y mol SO 24 Tng lng cỏc mui tan cú dung dch l 5,435 gam Giỏ tr ca x v y ln lt l: A 0,01 v 0,03 B 0,03 v 0,02 C 0,05 v 0,01 D 0,02 v 0,05 Cõu 196 Ho tan hon ton hn hp gm 0,12 mol FeS2 v a mol Cu2S vo axit HNO3 (va ), thu c dung dch X (ch cha hai mui sunfat) v khớ nht NO Giỏ tr ca a l A 0,075 B 0,12 C 0,06 D 0,04 Cõu 197 Hn hp X cha Na2O, NH4Cl, NaHCO3 v BaCl2 cú s mol mi cht u bng Cho hn hp X vo H2O (d), un núng, dung dch thu c cha A NaCl, NaHCO3, NH4Cl, BaCl2 B NaCl C NaCl, NaOH D NaCl, NaOH, BaCl2 Cõu 198 Trong cỏc dung dch: HNO3, NaCl, Na2SO4, Ca(OH)2, KHSO4, Mg(NO3)2, dóy gm cỏc cht u tỏc dng c vi dung dch Ba(HCO3)2 l: A HNO3, Ca(OH)2, KHSO4, Mg(NO3)2 B NaCl, Na2SO4, Ca(OH)2 C HNO3, Ca(OH)2, KHSO4, Na2SO4 D HNO3, NaCl, Na2SO4 Cõu 199 Dung dch X cha cỏc ion: Fe3+, SO42-, NH4+, Cl- Chia dung dch X thnh hai phn bng nhau: - Phn mt tỏc dng vi lng d dung dch NaOH, un núng thu c 0,672 lớt khớ ( ktc) v 1,07 gam kt ta; - Phn hai tỏc dng vi lng d dung dch BaCl2, thu c 4,66 gam kt ta Tng lng cỏc mui khan thu c cụ cn dung dch X l (quỏ trỡnh cụ cn ch cú nc bay hi) A 7,04 gam B 3,73 gam C 3,52 gam D 7,46 gam Cõu 200 Khi hũa tan hiroxit kim loi M(OH)2 bng mt lng va dung dch H2SO4 20% thu c dung dch mui trung ho cú nng 27,21% Kim loi M l A Fe B Mg C Zn D Cu PHI KIM (halogen - oxi, lu hunh - cacbon, silic - nit, photpho): Cõu 201 Trong phũng thớ nghim, ngi ta thng iu ch clo bng cỏch A in phõn dung dch NaCl cú mng ngn B cho dung dch HCl c tỏc dng vi MnO2, un núng C in phõn núng chy NaCl D cho F2 y Cl2 dung dch NaCl Cõu 202 Trong phũng thớ nghim, ngi ta iu ch oxi bng cỏch A nhit phõn KClO3 cú xỳc tỏc MnO2 B nhit phõn Cu(NO3)2 C in phõn nc D chng ct phõn on khụng khớ lng Cõu 203 ng dng no sau õy khụng phi ca ozon? A iu ch oxi phũng thớ nghim B Ty trng tinh bt, du n C Sỏt trựng nc sinh hot D Cha sõu rng Cõu 204 Trong phũng thớ nghim, iu ch mt lng nh khớ X tinh khit, ngi ta un núng dung dch amoni nitrit bóo ho Khớ X l A N2O B N2 C NO2 D NO Cõu 205 Trong phũng thớ nghim, ngi ta thng iu ch HNO3 t PHN LOI CC DNG CU HI TRONG THI HC 2007 -2008 -2009-2010 Cõu 265 in phõn núng chy Al2O3 vi anot than chỡ (hiu sut in phõn 100%) thu c m kg Al catot v 67,2 m3 ( ktc) hn hp khớ X cú t so vi hiro bng 16 Ly 2,24 lớt ( ktc) hn hp khớ X sc vo dung dch nc vụi (d) thu c gam kt ta Giỏ tr ca m l A 67,5 B 75,6 C 54,0 D 108,0 Cõu 266 in phõn dung dch cha a mol CuSO4 v b mol NaCl (vi in cc tr, cú mng ngn) dung dch sau in phõn lm phenolphtalein chuyn sang mu hng thỡ iu kin ca a v b l A b < 2a B 2b = a C b > 2a D b = 2a Cõu 267 in phõn dung dch CuCl2 vi in cc tr, sau mt thi gian thu c 0,32 gam Cu catụt v mt lng khớ X anụt Hp th hon ton lng khớ X trờn vo 200 ml dung dch NaOH ( nhit thng) Sau phn ng, nng NaOH cũn li l 0,05M (gi thit th tớch dung dch khụng thay i) Nng ban u ca dung dch NaOH l (cho Cu = 64) A 0,15M B 0,05M C 0,1M D 0,2M Cõu 268 in phõn cú mng ngn 500 ml dung dch cha hn hp gm CuCl2 0,1M v NaCl 0,5M (in cc tr, hiu sut in phõn 100%) vi cng dũng in 5A 3860 giõy Dung dch thu c sau in phõn cú kh nng ho tan m gam Al Giỏ tr ln nht ca m l A 2,70 B 5,40 C 4,05 D 1,35 - Kl tỏc dng axit HCl, H2SO4 loóng Cõu 269 Hũa tan hon ton 3,22 gam hn hp X gm Fe, Mg v Zn bng mt lng va dung dch H2SO4 loóng, thu c 1,344 lớt hiro (ktc) v dung dch cha m gam mui Giỏ tr ca m l A 10,27 B 9,52 C 7,25 D 8,98 Cõu 270 Cho 3,68 gam hn hp gm Al v Zn tỏc dng vi mt lng va dung dch H2SO4 10%, thu c 2,24 lớt khớ H2 ( ktc) Khi lng dung dch thu c sau phn ng l A 101,48 gam B 101,68 gam C 97,80 gam D 88,20 gam Cõu 271 Ho tan ht 7,74 gam hn hp bt Mg, Al bng 500 ml dung dch hn hp HCl 1M v H2SO4 0,28M thu c dung dch X v 8,736 lớt khớ H2 (ktc) Cụ cn dung dch X thu c lng mui khan l A 103,85 gam B 25,95 gam C 77,86 gam D 38,93 gam Cõu 272 Cho 13,5 gam hn hp cỏc kim loi Al, Cr, Fe tỏc dng vi lng d dung dch H2SO4 loóng núng (trong iu kin khụng cú khụng khớ), thu c dung dch X v 7,84 lớt khớ H2 ( ktc).Cụ cn dung dch X (trong iu kin khụng cú khụng khớ) c m gam mui khan Giỏ tr ca m l A 48,8 B 42,6 C 45,5 D 47,1 Cõu 273 Cho m gam hn hp Mg, Al vo 250 ml dung dch X cha hn hp axit HCl 1M v axit H2SO4 0,5M, thu c 5,32 lớt H2 ( ktc) v dung dch Y (coi th tớch dung dch khụng i) Dung dch Y cú pH l A B C D Cõu 274 Cho 1,67 gam hn hp gm hai kim loi chu k liờn tip thuc nhúm IIA tỏc dng ht vi dung dch HCl (d), thoỏt 0,672 lớt khớ H2 ( ktc) Hai kim loi ú l A Ca v Sr B Sr v Ba C Mg v Ca D Be v Mg Cõu 275 Cho m gam hn hp X gm Al, Cu vo dung dch HCl (d), sau kt thỳc phn ng sinh 3,36 lớt khớ ( ktc) Nu cho m gam hn hp X trờn vo mt lng d axit nitric (c, ngui), sau kt thỳc phn ng sinh 6,72 lớt khớ NO2 (sn phm kh nht, ktc) Giỏ tr ca m l A 15,6 B 10,5 C 12,3 D 11,5 Cõu 276 X l kim loi thuc phõn nhúm chớnh nhúm II (hay nhúm IIA) Cho 1,7 gam hn hp gm kim loi X v Zn tỏc dng vi lng d dung dch HCl, sinh 0,672 lớt khớ H2 ( ktc) Mt khỏc, cho 1,9 gam X tỏc dng vi lng d dung dch H2SO4 loóng, thỡ th tớch khớ hiro sinh cha n 1,12 lớt ( ktc) Kim loi X l A Ca B Sr C Mg D Ba Cõu 277 Ho tan hon ton hn hp X gm Fe v Mg bng mt lng va dung dch HCl 20%, thu c dung dch Y Nng ca FeCl2 dung dch Y l 15,76% Nng phn trm ca MgCl2 dung dch Y l A 15,76% B 28,21% C 11,79% D 24,24% - Kl tỏc dng HNO3, H2SO4 c Cõu 278 Cho hn hp Fe, Cu phn ng vi dung dch HNO3 loóng Sau phn ng hon ton, thu c dung dch ch cha mt cht tan v kim loi d Cht tan ú l A Fe(NO3)3 B HNO3 C Fe(NO3)2 D Cu(NO3)2 Cõu 279 Cho hn hp X gm Mg v Fe vo dung dch axit H2SO4 c, núng n cỏc phn ng xy hon ton, thu c dung dch Y v mt phn Fe khụng tan Cht tan cú dung dch Y l A MgSO4, Fe2(SO4)3 v FeSO4 B MgSO4 C MgSO4 v FeSO4 D MgSO4 v Fe2(SO4)3 Cõu 280 Th tớch dung dch HNO3 1M (loóng) ớt nht cn dựng ho tan hon ton mt hn hp gm 0,15 mol Fe v 0,15 mol Cu l (bit phn ng to cht kh nht l NO) A 0,6 lớt B 1,0 lớt C 0,8 lớt D 1,2 lớt Cõu 281 Cho 3,6 gam Mg tỏc dng ht vi dung dch HNO3 (d), sinh 2,24 lớt khớ X (sn phm kh nht, ktc) Khớ X l A N2O B N2 C NO2 D NO Cõu 282 Hũa tan hon ton 12 gam hn hp Fe, Cu (t l mol 1:1) bng axit HNO3, thu c V lớt (ktc) hn hp khớ X (gm NO v NO2) v dung dch Y (ch cha hai mui v axit d) T ca X i vi H2 bng 19 Giỏ tr ca V l A 5,60 B 2,24 C 4,48 D 3,36 Cõu 283 Ho tan hon ton 8,862 gam hn hp gm Al v Mg vo dung dch HNO3 loóng, thu c dung dch X v 3,136 lớt ( ktc) hn hp Y gm hai khớ khụng mu, ú cú mt khớ húa nõu khụng khớ Khi lng ca Y l 5,18 gam Cho dung dch NaOH (d) vo X v un núng, khụng cú khớ mựi khai thoỏt Phn trm lng ca Al hn hp ban u l A 10,52% B 19,53% C 15,25% D 12,80% PHN LOI CC DNG CU HI TRONG THI HC 2007 -2008 -2009-2010 Cõu 284 Cho 6,72 gam Fe vo dung dch cha 0,3 mol H2SO4 c, núng (gi thit SO2 l sn phm kh nht) Sau phn ng xy hon ton, thu c A 0,02 mol Fe2(SO4)3 v 0,08 mol FeSO4 B 0,05 mol Fe2(SO4)3 v 0,02 mol Fe d C 0,12 mol FeSO4 D 0,03 mol Fe2(SO4)3 v 0,06 mol FeSO4 Cõu 285 Cho 3,024 gam mt kim loi M tan ht dung dch HNO3 loóng, thu c 940,8 ml khớNxOy (sn phm kh nht, ktc) cú t i vi H2 bng 22 Khớ NxOy v kim loi M l A N2O v Al B N2O v Fe C NO v Mg D NO2 v Al Este, lipit: + Cõu 286 Mnh khụng ỳng l: A CH3CH2COOCH=CH2 tỏc dng vi dung dch NaOH thu c anehit v mui B CH3CH2COOCH=CH2 tỏc dng c vi dung dch Br2 C CH3CH2COOCH=CH2 cú th trựng hp to polime D CH3CH2COOCH=CH2 cựng dóy ng ng vi CH2=CHCOOCH3 Cõu 287 S ng phõn este ng vi cụng thc phõn t C4H8O2 l A B C D Cõu 288 S hp cht l ng phõn cu to, cú cựng cụng thc phõn t C4H8O2, tỏc dng c vi dung dch NaOH nhng khụng tỏc dng c vi Na l A B C D Cõu 289 Phỏt biu ỳng l: A Phn ng thy phõn este mụi trng axit l phn ng thun nghch B Phn ng gia axit v ru cú H2SO4 c l phn ng mt chiu C Tt c cỏc este phn ng vi dung dch kim luụn thu c sn phm cui cựng l mui v (ancol) D Khi thy phõn cht bộo luụn thu c C2H4(OH)2 Cõu 290 Phỏt biu no sau õy sai? A S nguyờn t hiro phõn t este n v a chc luụn l mt s chn B Sn phm ca phn ng x phũng hoỏ cht bộo l axit bộo v glixerol C Nhit sụi ca este thp hn hn so vi ancol cú cựng phõn t D Trong cụng nghip cú th chuyn hoỏ cht bộo lng thnh cht bộo rn Cõu 291 Cho glixerin trioleat (hay triolein) ln lt vo mi ng nghim cha riờng bit: Na, Cu(OH)2, CH3OH, dung dch Br2, dung dch NaOH Trong iu kin thớch hp, s phn ng xy l A B C D Cõu 292 Hp cht hu c X tỏc dng c vi dung dch NaOH un núng v vi dung dch AgNO3 NH3 Th tớch ca 3,7 gam hi cht X bng th tớch ca 1,6 gam khớ O2 (cựng iu kin v nhit v ỏp sut) Khi t chỏy hon ton gam X thỡ th tớch khớ CO2 thu c vt quỏ 0,7 lớt ( ktc) Cụng thc cu to ca X l A HCOOC2H5 B HOOC-CHO C CH3COOCH3 D O=CH-CH2-CH2OH Cõu 293 Hai este n chc X v Y l ng phõn ca Khi hoỏ hi 1,85 gam X, thu c th tớch hi ỳng bng th tớch ca 0,7 gam N2 (o cựng iu kin) Cụng thc cu to thu gn ca X v Y l A C2H5COOCH3 v HCOOCH(CH3)2 B C2H3COOC2H5 v C2H5COOC2H3 C HCOOCH2CH2CH3 v CH3COOC2H5 D HCOOC2H5 v CH3COOCH3 Cõu 294 Hn hp X gm hai este no, n chc, mch h t chỏy hon ton mt lng X cn dựng va 3,976 lớt khớ O2 ( ktc), thu c 6,38 gam CO2 Mt khỏc, X tỏc dng vi dung dch NaOH, thu c mt mui v hai ancol l ng ng k tip Cụng thc phõn t ca hai este X l A C2H4O2 v C3H6O2 B C2H4O2 v C5H10O2 C C3H6O2 v C4H8O2 D C3H4O2 v C4H6O2 Cõu 295 Khi t chỏy hon ton mt este no, n chc thỡ s mol CO2 sinh bng s mol O2 ó phn ng Tờn gi ca este l A metyl axetat B etyl axetat C metyl fomiat D n-propyl axetat Cõu 296 Este X cú cỏc c im sau: - t chỏy hon ton X to thnh CO2 v H2O cú s mol bng nhau; - Thu phõn X mụi trng axit c cht Y (tham gia phn ng gng) v cht Z (cú s nguyờn t cacbon bng mt na s nguyờn t cacbon X) Phỏt biu khụng ỳng l: A t chỏy hon ton mol X sinh sn phm gm mol CO2 v mol H2O B Cht Y tan vụ hn nc C Cht X thuc loi este no, n chc D un Z vi dung dch H2SO4 c 170oC thu c anken Cõu 297 Mt este cú cụng thc phõn t l C4H6O2, thu phõn mụi trng axit thu c axetanehit Cụng thc cu to thu gn ca este ú l A HCOO-C(CH3)=CH2 B HCOO-CH=CH-CH3 C CH2=CH-COO-CH3 D CH3COO-CH=CH2 Cõu 298 Thy phõn este cú cụng thc phõn t C4H8O2 (vi xỳc tỏc axit), thu c sn phm hu c X v Y T X cú th iu ch trc tip Y Vy cht X l PHN LOI CC DNG CU HI TRONG THI HC 2007 -2008 -2009-2010 A etyl axetat B axit fomic C ru etylic D ru metylic Cõu 299 X phũng hoỏ mt hp cht cú cụng thc phõn t C10H14O6 dung dch NaOH (d), thu c glixerol v hn hp gm ba mui (khụng cú ng phõn hỡnh hc) Cụng thc ca ba mui ú l: A HCOONa, CHC-COONa v CH3-CH2-COONa B CH2=CH-COONa, HCOONa v CHC-COONa C CH3-COONa, HCOONa v CH3-CH=CH-COONa D CH2=CH-COONa, CH3-CH2-COONa v HCOONa Cõu 300 Este X khụng no, mch h, cú t hi so vi oxi bng 3,125 v tham gia phn ng x phũng hoỏ to mt anehit v mt mui ca axit hu c Cú bao nhiờu cụng thc cu to phự hp vi X? A B C D Cõu 301 Cho cht X tỏc dng vi mt lng va dung dch NaOH, sau ú cụ cn dung dch thu c cht rn Y v cht hu c Z Cho Z tỏc dng vi AgNO3 (hoc Ag2O) dung dch NH3 thu c cht hu c T Cho cht T tỏc dng vi dung dch NaOH li thu c cht Y Cht X cú th l A CH3COOCH=CH-CH3 B CH3COOCH=CH2 C HCOOCH3 D HCOOCH=CH2 Cõu 302 Cht hu c X cú cụng thc phõn t C5H8O2 Cho gam X tỏc dng va ht vi dung dch NaOH, thu c mt hp cht hu c khụng lm mt mu nc brom v 3,4 gam mt mui Cụng thc ca X l A HCOOCH2CH=CHCH3 B CH3COOC(CH3)=CH2 C HCOOCH=CHCH2CH3 D HCOOC(CH3)=CHCH3 Cõu 303 Hai cht hu c X1 v X2 u cú lng phõn t bng 60 vC X1 cú kh nng phn ng vi: Na, NaOH, Na2CO3 X2 phn ng vi NaOH (un núng) nhng khụng phn ng Na Cụng thc cu to ca X1, X2 ln lt l: A CH3-COOH, H-COO-CH3 B H-COO-CH3, CH3-COOH C CH3-COOH, CH3-COO-CH3 D (CH3)2CH-OH, H-COO-CH3 Cõu 304 Cht hu c X cú cụng thc phõn t C4H6O4 tỏc dng vi dung dch NaOH (un núng) theo phng trỡnh phn ng: C4H6O4 + 2NaOH 2Z + Y oxi hoỏ ht a mol Y thỡ cn va 2a mol CuO (un núng), sau phn ng to thnh a mol cht T (bit Y, Z, T l cỏc hp cht hu c) Khi lng phõn t ca T l A 118 vC B 58 vC C 82 vC D 44 vC Cõu 305 Cho m gam hn hp gm hai cht hu c n chc, mch h tỏc dng va vi dung dch cha 11,2 gam KOH, thu c mui ca mt axit cacboxylic v mt ancol X Cho ton b X tỏc dng ht vi Na thu c 3,36 lớt khớ H2 ( ktc) Hai cht hu c ú l A mt este v mt ancol B hai axit C hai este D mt este v mt axit Cõu 306 Mt hn hp X gm hai cht hu c n chc Cho X phn ng va vi 500 ml dung dch KOH 1M Sau phn ng, thu c hn hp Y gm hai mui ca hai axit cacboxylic v mt ru (ancol) Cho ton b lng ru thu c trờn tỏc dng vi Na (d), sinh 3,36 lớt H2 ( ktc) Hn hp X gm A mt axit v mt ru B mt axit v mt este C hai este D mt este v mt ru Cõu 307 Cho hn hp X gm hai hp cht hu c no, n chc tỏc dng va vi 100 ml dung dch KOH 0,4M, thu c mt mui v 336 ml hi mt ancol ( ktc) Nu t chỏy hon ton lng hn hp X trờn, sau ú hp th ht sn phm chỏy vo bỡnh ng dung dch Ca(OH)2 (d) thỡ lng bỡnh tng 6,82 gam Cụng thc ca hai hp cht hu c X l A CH3COOH v CH3COOC2H5 B HCOOH v HCOOC2H5 C HCOOH v HCOOC3H7 D C2H5COOH v C2H5COOCH3 Cõu 308 X phũng hoỏ hon ton 22,2 gam hn hp gm hai este HCOOC2H5 v CH3COOCH3 bng dung dch NaOH 1M (un núng) Th tớch dung dch NaOH ti thiu cn dựng l A 300 ml B 400 ml C 150 ml D 200 ml Cõu 309 X phũng húa 8,8 gam etyl axetat bng 200 ml dung dch NaOH 0,2M Sau phn ng xy hon ton, cụ cn dung dch thu c cht rn khan cú lng l A 10,4 gam B 3,28 gam C 8,2 gam D 8,56 gam Cõu 310 Este X (cú lng phõn t bng 103 vC) c iu ch t mt ancol n chc (cú t hi so vi oxi ln hn 1) v mt amino axit Cho 25,75 gam X phn ng ht vi 300 ml dung dch NaOH 1M, thu c dung dch Y Cụ cn Y thu c m gam cht rn Giỏ tr m lA 26,25 B 24,25 C 27,75 D 29,75 Cõu 311 X l mt este no n chc, cú t hi i vi CH4 l 5,5 Nu em un 2,2 gam este X vi dung dch NaOH (d), thu c 2,05 gam mui Cụng thc cu to thu gn ca X l A C2H5COOCH3 B HCOOCH2CH2CH3 C HCOOCH(CH3)2 D CH3COOC2H5 Cõu 312 Khi t chỏy hon ton 4,4 gam cht hu c X n chc thu c sn phm chỏy ch gm 4,48 lớt CO2 ( ktc) v 3,6 gam nc Nu cho 4,4 gam hp cht X tỏc dng vi dung dch NaOH va n phn ng hon ton, thu c 4,8 gam mui ca axit hu c Y v cht hu c Z Tờn ca X l A etyl axetat B metyl propionat C etyl propionat D isopropyl axetat Cõu 313 Este n chc X cú t hi so vi CH4 l 6,25 Cho 20 gam X tỏc dng vi 300 ml dung dch KOH 1M (un núng) Cụ cn dung dch sau phn ng thu c 28 gam cht rn khan Cụng thc cu to ca X l A CH2=CH-CH2-COO-CH3 B CH3-CH2-COO-CH=CH2 C CH2=CH-COO-CH2-CH3 D CH3 -COO-CH=CH-CH3 Cõu 314 Cho 20 gam mt este X (cú phõn t l 100 vC) tỏc dng vi 300 ml dung dch NaOH 1M Sau phn ng, cụ cn dung dch thu c 23,2 gam cht rn khan Cụng thc cu to ca X l A CH3COOCH=CHCH3 B CH2=CHCOOC2H5 C CH2=CHCH2COOCH3 D C2H5COOCH=CH2 Cõu 315 Hp cht hu c no, a chc X cú cụng thc phõn t C7H12O4 Cho 0,1 mol X tỏc dng va vi 100 gam dung dch NaOH 8% thu c cht hu c Y v 17,8 gam hn hp mui Cụng thc cu to thu gn ca X l A CH3COO-(CH2)2-OOCC2H5 B CH3OOC-(CH2)2-COOC2H5 C CH3COO-(CH2)2-COOC2H5 D CH3OOC-CH2-COO-C3H7 Cõu 316 X phũng hoỏ hon ton 17,24 gam cht bộo cn va 0,06 mol NaOH Cụ cn dung dch sau phn ng thu c lng x phũng lA 17,80 gam B 18,38 gam C 18,24 gam D 16,68 gam Cõu 317 X phũng hoỏ hon ton 1,99 gam hn hp hai este bng dung dch NaOH thu c 2,05 gam mui ca mt axit cacboxylic v 0,94 gam hn hp hai ancol l ng ng k tip Cụng thc ca hai este ú l A C2H5COOCH3 v C2H5COOC2H5 B CH3COOC2H5 v CH3COOC3H7 PHN LOI CC DNG CU HI TRONG THI HC 2007 -2008 -2009-2010 C HCOOCH3 v HCOOC2H5 D CH3COOCH3 v CH3COOC2H5 Cõu 318 Thu phõn hon ton 444 gam mt lipit thu c 46 gam glixerol (glixerin) v hai loi axit bộo Hai loi axit bộo ú l A C17H31COOH v C17H33COOH B C15H31COOH v C17H35COOH C C17H33COOH v C17H35COOH D C17H33COOH v C15H31COOH PHN NG ESTE HểA Cõu 319 Cho glixerol (glixerin) phn ng vi hn hp axit bộo gm C17H35COOH v C15H31COOH, s loi trieste c to ti a l A B C D Cõu 320 un núng 6,0 gam CH3COOH vi 6,0 gam C2H5OH (cú H2SO4 lm xỳc tỏc, hiu sut phn ng este hoỏ bng 50%) Khi lng este to thnh lA 8,8 gam B 6,0 gam C 5,2 gam D 4,4 gam Cõu 321 Hn hp X gm axit HCOOH v axit CH3COOH (t l mol 1:1) Ly 5,3 gam hn hp X tỏc dng vi 5,75 gam C2H5OH (cú xỳc tỏc H2SO4 c) thu c m gam hn hp este (hiu sut ca cỏc phn ng este hoỏ u bng 80%) Giỏ tr ca m l A 10,12 B 16,20 C 8,10 D 6,48 Cõu 322 un 12 gam axit axetic vi 13,8 gam etanol (cú H2SO4 c lm xỳc tỏc) n phn ng t ti trng thỏi cõn bng, thu c 11 gam este Hiu sut ca phn ng este hoỏ l A 55% B 75% C 50% D 62,5% Cõu 323 Khi thc hin phn ng este hoỏ mol CH3COOH v mol C2H5OH, lng este ln nht thu c l 2/3 mol t hiu sut cc i l 90% (tớnh theo axit) tin hnh este hoỏ mol CH3COOH cn s mol C2H5OH l (bit cỏc phn ng este hoỏ thc hin cựng nhit ) A 0,342 B 2,412 C 2,925 D 0,456 Cõu 324 trung ho lng axit t cú 14 gam mt mu cht bộo cn 15ml dung dch KOH 0,1M Ch s axit ca mu cht bộo trờn l A 5,5 B 6,0 C 7,2 D 4,8 AMIN AMINO AXIT - PROTEIN Cõu 325 Mt nhng im khỏc ca protit so vi lipit v glucoz l A protit luụn cha chc hiroxyl B protit luụn cha nit C protit luụn l cht hu c no D protit cú lng phõn t ln hn Cõu 326 Phỏt biu khụng ỳng l: A Hp cht H2N-CH2-COOH3N-CH3 l este ca glyxin (hay glixin) B Trong dung dch, H2N-CH2-COOH cũn tn ti dng ion lng cc H3N+-CH2-COO- C Aminoaxit l nhng cht rn, kt tinh, tan tt nc v cú v ngt D Aminoaxit l hp cht hu c chc, phõn t cha ng thi nhúm amino v nhúm cacboxyl Cõu 327 Cú cỏc dung dch riờng bit sau: C6H5NH3Cl (phenylamoni clorua), NH2 - CH2 - CH2 - CH(NH2) - COOH, ClNH3 - CH2 COOH, HOOC - CH2 - CH2 - CH(NH2) COO H, NH2 - CH2 - COONa S lng cỏc dung dch cú pH < l A B C D Cõu 328 un núng cht H2N-CH2-CONH-CH(CH3)-CONH-CH2-COOH dung dch HCl (d), sau cỏc phn ng kt thỳc thu c sn phm l: A H2N-CH2-COOH, H2N-CH2-CH2-COOH B H2N-CH2-COOH, H2N-CH(CH3)-COOH C H3N+-CH2-COOHCl-, H3N+-CH2-CH2-COOHCl- D H3N+-CH2-COOHCl-, H3N+-CH(CH3)-COOHCl- Cõu 329 S ng phõn cu to ca amin bc mt cú cựng cụng thc phõn t C4H11N l A B C D Cõu 330 S ipeptit ti a cú th to t mt hn hp gm alanin v glyxin l A B C D Cõu 331 Thuc th c dựng phõn bit Gly-Ala-Gly vi Gly-Ala l A Cu(OH)2 mụi trng kim B dung dch NaOH C dung dch HCl D dung dch NaCl Cõu 332 Cht X cú cụng thc phõn t C3H7O2N v lm mt mu dung dch brom Tờn gi ca X l A amoni acrylat B axit -aminopropionic C axit -aminopropionic D metyl aminoaxetat Cõu 333 Cht X cú cụng thc phõn t C4H9O2N Bit: X + NaOH Y + CH4O Y + HCl (d) Z + NaCl Cụng thc cu to ca X v Z ln lt l A H2NCH2CH2COOCH3 v CH3CH(NH3Cl)COOH B H2NCH2COOC2H5 v ClH3NCH2COOH C CH3CH(NH2)COOCH3 v CH3CH(NH2)COOH D CH3CH(NH2)COOCH3 v CH3CH(NH3Cl)COOH Cõu 334 Cho s phn ng: NH + CH3I + HONO + CuO X Y Z (1:1) to Bit Z cú kh nng tham gia phn ng gng Hai cht Y v Z ln lt l: A C2H5OH, CH3CHO B CH3OH, HCOOH C C2H5OH, HCHO D CH3OH, HCHO Cõu 335 Khi t chỏy hon ton mt amin n chc X, thu c 8,4 lớt khớ CO2, 1,4 lớt khớ N2 (cỏc th tớch khớ o ktc) v 10,125 gam H2O Cụng thc phõn t ca X l:A C3H9N B C4H9N C C3H7N D C2H7N Cõu 336 t chỏy hon ton mt lng cht hu c X thu c 3,36 lớt khớ CO2, 0,56 lớt khớ N2 (cỏc khớ o ktc) v 3,15 gam H2O Khi X tỏc dng vi dung dch NaOH thu c sn phm cú mui H2N-CH2-COONa Cụng thc cu to thu gn ca X l A H2N-CH2-CH2-COOH B H2N-CH2-COO-CH3 C H2N-CH2-COO-C2H5 D H2N-CH2-COO-C3H7 Cõu 337 Cho cỏc loi hp cht: aminoaxit (X), mui amoni ca axit cacboxylic (Y), amin (Z), este caaminoaxit (T) Dóy gm cỏc loi hp cht u tỏc dng c vi dung dch NaOH v u tỏc dng c vi dung dch HCl l A X, Y, Z B Y, Z, T C X, Y, Z, T D X, Y, T Cõu 338 -aminoaxit X cha mt nhúm -NH2 Cho 10,3 gam X tỏc dng vi axit HCl (d), thu c 13,95 gam mui khan Cụng thc cu to thu gn ca X l A CH3CH2CH(NH2)COOH B H2NCH2COOH C CH3CH(NH2)COOH D H2NCH2CH2COOH Cõu 339 Cho 10 gam amin n chc X phn ng hon ton vi HCl (d), thu c 15 gam mui S ng phõn cu to ca X l A B C D PHN LOI CC DNG CU HI TRONG THI HC 2007 -2008 -2009-2010 Cõu 340 Cho 5,9 gam amin n chc X tỏc dng va vi dung dch HCl, sau phn ng xy hon ton thu c dung dch Y Lm bay hi dung dch Y c 9,55 gam mui khan S cụng thc cu to ng vi cụng thc phõn t ca X l A B C D Cõu 341 Cho mol amino axit X phn ng vi dung dch HCl (d), thu c m1 gam mui Y Cng mol amino axit X phn ng vi dung dch NaOH (d), thu c m2 gam mui Z Bit m2 - m1 = 7,5 Cụng thc phõn t ca X l A C4H8O4N2 B C4H10O2N2 C C5H11O2N D C5H9O4N Cõu 342 trung hũa 25 gam dung dch ca mt amin n chc X nng 12,4% cn dựng 100ml dung dch HCl 1M Cụng thc phõn t ca X l A C2H7N B CH5N C C3H7N D C3H5N Cõu 343 Trong phõn t aminoaxit X cú mt nhúm amino v mt nhúm cacboxyl Cho 15,0 gam X tỏc dng va vi dung dch NaOH, cụ cn dung dch sau phn ng thu c 19,4 gam mui khan Cụng thc ca X l A H2NC3H6COOH B H2NC2H4COOH C H2NCH2COOH D H2NC4H8COOH Cõu 344 Cho 0,02 mol amino axit X tỏc dng va vi 200 ml dung dch HCl 0,1M thu c 3,67 gam mui khan Mt khỏc 0,02 mol X tỏc dng va vi 40 gam dung dch NaOH 4% Cụng thc ca X l A H2NC3H5(COOH)2 B H2NC2H3(COOH)2 C (H2N)2C3H5COOH D H2NC3H6COOH Cõu 345 Hp cht X cú cụng thc phõn t trựng vi cụng thc n gin nht, va tỏc dng c vi axit va tỏc dng c vi kim iu kin thớch hp Trong phõn t X, thnh phn phn trm lng ca cỏc nguyờn t C, H, N ln lt bng 40,449%; 7,865% v 15,73%; cũn li l oxi Khi cho 4,45 gam X phn ng hon ton vi mt lng va dung dch NaOH (un núng) thu c 4,85 gam mui khan Cụng thc cu to thu gn ca X l A H2NCH2COO-CH3 B H2NC2H4COOH C CH2=CHCOONH4 D H2NCOO-CH2CH3 Cõu 346 Cho 8,9 gam mt hp cht hu c X cú cụng thc phõn t C3H7O2N phn ng vi 100 ml dung dch NaOH 1,5M Sau phn ng xy hon ton, cụ cn dung dch thu c 11,7 gam cht rn Cụng thc cu to thu gn ca X l A H2NCH2COOCH3 B HCOOH3NCH=CH2 C H2NCH2CH2COOH D CH2=CHCOONH4 Cõu 347 Cho 1,82 gam hp cht hu c n chc, mch h X cú cụng thc phõn t C3H9O2N tỏc dng va vi dung dch NaOH, un núng thu c khớ Y v dung dch Z Cụ cn Z thu c 1,64 gam mui khan Cụng thc cu to thu gn ca X l A HCOONH2(CH3)2 B HCOONH3CH2CH3 C CH3COONH3CH3 D CH3CH2COONH4 Cõu 348 Cho hn hp X gm hai cht hu c cú cựng cụng thc phõn t C2H7NO2 tỏc dng va vi dung dch NaOH v un núng, thu c dung dch Y v 4,48 lớt hn hp Z ( ktc) gm hai khớ (u lm xanh giy qu m) T hi ca Z i vi H2 bng 13,75 Cụ cn dung dch Y thu c lng mui khan l A 16,5 gam B 8,9 gam C 14,3 gam D 15,7 gam Cõu 349 Hp cht X mch h cú cụng thc phõn t l C4H9NO2 Cho 10,3 gam X phn ng va vi dung dch NaOH sinh mt cht khớ Y v dung dch Z Khớ Y nng hn khụng khớ, lm giy qu tớm m chuyn mu xanh Dung dch Z cú kh nng lm mt mu nc brom Cụ cn dung dch Z thu c m gam mui khan Giỏ tr ca m l A 9,6 B 9,4 C 8,2 D 10,8 Cõu 350 Cho cht hu c X cú cụng thc phõn t C2H8O3N2 tỏc dng vi dung dch NaOH, thu c cht hu c n chc Y v cỏc cht vụ c Khi lng phõn t (theo vC) ca Y l A 45 B 68 C 85 D 46 Cõu 351 Cho hai hp cht hu c X, Y cú cựng cụng thc phõn t l C3H7NO2 Khi phn ng vi dung dch NaOH, X to H2NCH2COONa v cht hu c Z; cũn Y to CH2=CHCOONa v khớ T Cỏc cht Z v T ln lt l A CH3NH2 v NH3 B CH3OH v CH3NH2 C CH3OH v NH3 D C2H5OH v N2 Cõu 352 Ngi ta iu ch anilin bng s sau: + HNO3 đặc Fe + HCl Benzen Nitrobenzen Anilin H 2SO4 đặc to Bit hiu sut giai on to thnh nitrobenzen t 60% v hiu sut giai on to thnh anilin t 50% Khi lng anilin thu c iu ch t 156 gam benzen l A 186,0 gam B 111,6 gam C 93,0 gam D 55,8 gam Cõu 353 Mui C6H5N2+Cl- (phenyliazoni clorua) c sinh cho C6H5-NH2 (anilin) tỏc dng vi NaNO2 dung dch HCl nhit thp (0-5oC) iu ch c 14,05 gam C6H5N2+Cl- (vi hiu sut 100%), lng C6H5-NH2 v NaNO2 cn dựng va l: A 0,1 mol v 0,3 mol B 0,1 mol v 0,4 mol C 0,1 mol v 0,1 mol D 0,1 mol v 0,2 mol CACBOHIDRAT Cõu 354 chng minh phõn t ca glucoz cú nhiu nhúm hiroxyl, ngi ta cho dung dch glucoz phn ng vi A kim loi Na B Cu(OH)2 nhit thng C Cu(OH)2 NaOH, un núng D AgNO3 (hoc Ag2O) dung dch NH3, un núng Cõu 355 Cacbohirat nht thit phi cha nhúm chc ca A anehit B ancol C xeton D amin Cõu 356 Cho mt s tớnh cht: cú dng si (1); tan nc (2); tan nc Svayde (3); phn ng vi axit nitric c (xỳc tỏc axit sunfuric c) (4); tham gia phn ng bc (5); b thu phõn dung dch axit un núng (6) Cỏc tớnh cht ca xenluloz l: A (1), (3), (4) v (6) B (2), (3), (4) v (5) C (3), (4), (5) v (6) D (1), (2), (3) v (4) Cõu 357 Phỏt biu khụng ỳng l A Dung dch fructoz ho tan c Cu(OH)2 B Dung dch mantoz tỏc dng vi Cu(OH)2 un núng cho kt ta Cu2O C Thy phõn (xỳc tỏc H+, to) saccaroz cng nh mantoz u cho cựng mt monosaccarit D Sn phm thy phõn xenluloz (xỳc tỏc H+, to) cú th tham gia phn ng gng Cõu 358 Phỏt biu no sau õy khụng ỳng? A Glucoz tỏc dng c vi nc brom B Glucoz tn ti dng mch h v dng mch vũng PHN LOI CC DNG CU HI TRONG THI HC 2007 -2008 -2009-2010 C dng mch h, glucoz cú nhúm OH k D Khi glucoz dng vũng thỡ tt c cỏc nhúm OH u to ete vi CH3OH Cõu 359 Phỏt biu no sau õy l ỳng? A Glucoz b kh bi dung dch AgNO3 NH3 B Xenluloz cú cu trỳc mch phõn nhỏnh C Amilopectin cú cu trỳc mch phõn nhỏnh D Saccaroz lm mt mu nc brom Cõu 360 Tinh bt, xenluloz, saccaroz, mantoz u cú kh nng tham gia phn ng A gng B ho tan Cu(OH)2 C thy phõn D trựng ngng Cõu 361 Gluxit (cacbohirat) ch cha hai gc glucoz phõn t l A mantoz B xenluloz C tinh bt D saccaroz Cõu 362 Cho dóy cỏc cht: glucoz, xenluloz, saccaroz, tinh bt, mantoz S cht dóy tham gia phn ng gng l A B C D Cõu 363 Cho 50ml dung dch glucoz cha rừ nng tỏc dng vi mt lng d AgNO3 dung dch NH3 thu c 2,16 gam Ag kt ta Nng mol/l ca dung dch glucoz ó dựng l A 0,10M B 0,02M C 0,20M D 0,01M Cõu 364 Lng glucoz cn dựng to 1,82 gam sobitol vi hiu sut 80% l A 1,80 gam B 2,25 gam C 1,44 gam D 1,82 gam Cõu 365 Cho s chuyn hoỏ: Glucoz X Y CH3COOH Hai cht X, Y ln lt l A CH3CHO v CH3CH2OH B CH3CH(OH)COOH v CH3CHO C CH3CH2OH v CH3CHO D CH3CH2OH v CH2=CH2 Cõu 366 Khi lng ca tinh bt cn dựng quỏ trỡnh lờn men to thnh lớt ru (ancol) etylic 46 l (bit hiu sut ca c quỏ trỡnh l 72% v lng riờng ca ru etylic nguyờn cht l 0,8 g/ml) A 5,0 kg B 6,0 kg C 4,5 kg D 5,4 kg Cõu 367 Lờn men hon ton m gam glucoz thnh ancol etylic Ton b khớ CO2 sinh quỏ trỡnh ny c hp th ht vo dung dch Ca(OH)2 (d) to 40 gam kt ta Nu hiu sut ca quỏ trỡnh lờn men l 75% thỡ giỏ tr ca m l A 58 B 30 C 60 D 48 Cõu 368 Cho m gam tinh bt lờn men thnh ancol (ru) etylic vi hiu sut 81% Ton b lng CO2 sinh c hp th hon ton vo dung dch Ca(OH)2, thu c 550 gam kt ta v dung dch X un k dung dch X thu thờm c 100 gam kt ta Giỏ tr ca m l A 550 B 650 C 750 D 810 Cõu 369 Lờn men m gam glucoz vi hiu sut 90%, lng khớ CO2 sinh hp th ht vo dung dch nc vụi trong, thu c 10 gam kt ta Khi lng dung dch sau phn ng gim 3,4 gam so vi lng dung dch nc vụi ban u Giỏ tr ca m l A 30,0 B 20,0 C 13,5 D 15,0 Cõu 370 T 16,20 tn xenluloz ngi ta sn xut c m tn xenluloz trinitrat (bit hiu sut phn ng tớnh theo xenluloz l 90%) Giỏ tr ca m l A 25,46 B 33,00 C 26,73 D 29,70 Cõu 371 Th tớch ca dung dch axit nitric 63% (D = 1,4 g/ml) cn va sn xut c 59,4 kg xenluloz trinitrat (hiu sut 80%) l A 53,57 lớt B 42,86 lớt C 42,34 lớt D 34,29 lớt Cõu 372 Xenluloz trinitrat c iu ch t xenluloz v axit nitric c cú xỳc tỏc axit sunfuric c, núng cú 29,7 kg xenluloz trinitrat, cn dựng dung dch cha m kg axit nitric (hiu sut phn ng t 90%) Giỏ tr ca m l A 21 kg B 30 kg C 42 kg D 10 kg Cõu 373 Th tớch dung dch HNO3 67,5% (khi lng riờng l 1,5 g/ml) cn dựng tỏc dng vi xenluloz to thnh 89,1 kg xenluloz trinitrat l (bit lng HNO3 b hao ht l 20 %) A 55 lớt B 81 lớt C 70 lớt D 49 lớt POLIME VT LIU POLIME Cõu 374 Dóy gm cỏc cht u cú kh nng tham gia phn ng trựng hp l: A buta-1,3-ien; cumen; etilen; trans-but-2-en B stiren; clobenzen; isopren; but-1-en C 1,2-iclopropan; vinylaxetilen; vinylbenzen; toluen D 1,1,2,2-tetrafloeten; propilen; stiren; vinyl clorua Cõu 375 Phỏt biu no sau õy l ỳng? A Trựng hp stiren thu c poli(phenol-fomanehit) B Poli(etylen terephtalat) c iu ch bng phn ng trựng ngng cỏc monome tng ng C Trựng ngng buta-1,3-ien vi acrilonitrin cú xỳc tỏc Na c cao su buna-N D T visco l t tng hp Cõu 376 Nilon-6,6 l mt loi A t axetat B t visco C t poliamit D polieste Cõu 377 Dóy gm cỏc cht c dựng tng hp cao su Buna-S l: A CH2=CH-CH=CH2, lu hunh B CH2=C(CH3)-CH=CH2, C6H5CH=CH2 C CH2=CH-CH=CH2, C6H5CH=CH2 D CH2=CH-CH=CH2, CH3-CH=CH2 Cõu 378 Polivinyl axetat (hoc poli(vinyl axetat)) l polime c iu ch bng phn ng trựng hp A CH3COO-CH=CH2 B C2H5COO-CH=CH2 C CH2=CH-COO-C2H5 D CH2=CH-COO-CH3 Cõu 379 Polime dựng ch to thu tinh hu c (plexiglas) c iu ch bng phn ng trựng hp A CH3COOCH=CH2 B CH2=C(CH3)COOCH3 C C6H5CH=CH2 D CH2 =CHCOOCH3 Cõu 380 Trong s cỏc loi t sau: t tm, t visco, t nilon-6,6, t axetat, t capron, t enang, nhng loi t no thuc loi t nhõn to? A T visco v t axetat B T tm v t enang C T visco v t nilon-6,6 D T nilon-6,6 v t capron Cõu 381 Polime cú cu trỳc mng khụng gian (mng li) l A PVC B PE C nha bakelit D amilopectin Cõu 382 Poli(metyl metacrylat) v nilon-6 c to thnh t cỏc monome tng ng l PHN LOI CC DNG CU HI TRONG THI HC 2007 -2008 -2009-2010 A CH2=C(CH3)-COOCH3 v H2N-[CH2]5-COOH B CH2=CH-COOCH3 v H2N-[CH2]6-COOH C CH2=C(CH3)-COOCH3 v H2N-[CH2]6-COOH D CH3-COO-CH=CH2 v H2N-[CH2]5-COOH Cõu 383 T nilon - 6,6 c iu ch bng phn ng trựng ngng A HOOC-(CH2)2-CH(NH2)-COOH B HOOC-(CH2)4-COOH v H2N-(CH2)6-NH2 C H2N-(CH2)5-COOH D HOOC-(CH2)4-COOH v HO-(CH2)2-OH Cõu 384 Thu phõn 1250 gam protein X thu c 425 gam alanin Nu phõn t ca X bng 100.000 vC thỡ s mt xớch alanin cú phõn t X lA 328 B 382 C 453 D 479 Cõu 385 Clo hoỏ PVC thu c mt polime cha 63,96% clo v lng, trung bỡnh phõn t clo phn ng vi k mt xớch mch PVC Giỏ tr ca k l A B C D Cõu 386 Khi lng ca mt on mch t nilon-6,6 l 27346 vC v ca mt on mch t capron l 17176 vC S lng mt xớch on mch nilon-6,6 v capron nờu trờn ln lt l A 121 v 114 B 113 v 114 C 113 v 152 D 121 v 152 Cõu 387 Cho s chuyn húa: CH4 C2H2 C2H3Cl PVC tng hp 250 kg PVC theo s trờn thỡ cn V m3 khớ thiờn nhiờn ( ktc) Giỏ tr ca V l (bit CH4 chim 80% th tớch khớ thiờn nhiờn v hiu sut ca c quỏ trỡnh l 50%) A 286,7 B 448,0 C 358,4 D 224,0 TNG HP HU C Cõu 388 Dóy gm cỏc cht u tỏc dng vi AgNO3 (hoc Ag2O) dung dch NH3, l: A anehit axetic, butin-1, etilen B anehit fomic, axetilen, etilen C axit fomic, vinylaxetilen, propin D anehit axetic, axetilen, butin-2 Cõu 389 Dóy gm cỏc dung dch u tham gia phn ng bc l: A Fructoz, mantoz, glixerol, anehit axetic B Glucoz, mantoz, axit fomic, anehit axetic C Glucoz, glixerol, mantoz, axit fomic D Glucoz, fructoz, mantoz, saccaroz Cõu 390 Cho tt c cỏc ng phõn n chc, mch h, cú cựng cụng thc phõn t C2H4O2 ln lt tỏc dng vi: Na, NaOH, NaHCO3 S phn ng xy l A B C D Cõu 391 Cho dóy cỏc cht: phenol, anilin, phenylamoni clorua, natri phenolat, etanol S cht dóy phn ng c vi NaOH (trong dung dch) l A B C D Cõu 392 Cho dóy cỏc cht: C6H5OH (phenol), C6H5NH2 (anilin), H2NCH2COOH, CH3CH2COOH, CH3CH2CH2NH2 S cht dóy tỏc dng c vi dung dch HCl l A B C D Cõu 393 Cho dóy cỏc cht: C2H2, HCHO, HCOOH, CH3CHO, (CH3)2CO, C12H22O11 (mantoz) S cht dóy tham gia c phn ng gng l A B C D Cõu 394 Cho dóy cỏc cht: CH4, C2H2, C2H4, C2H5OH, CH2=CH-COOH, C6H5NH2 (anilin), C6H5OH (phenol), C6H6 (benzen) S cht dóy phn ng c vi nc brom l A B C D Cõu 395 Cho cỏc cht: ru (ancol) etylic, glixerin (glixerol), glucoz, imetyl ete v axit fomic S cht tỏc dng c vi Cu(OH)2 l A B C D Cõu 396 Cht phn ng vi dung dch FeCl3 cho kt ta l A CH3NH2 B CH3COOH C CH3OH D CH3COOCH3 Cõu 397 S hp cht n chc, ng phõn cu to ca cú cựng cụng thc phõn t C4H8O2, u tỏc dng c vi dung dch NaOH l A B C D Cõu 398 Cho cỏc hp cht hu c: C2H2; C2H4; CH2O; CH2O2 (mch h); C3H4O2 (mch h, n chc) Bit C3H4O2 khụng lm chuyn mu qu tớm m S cht tỏc dng c vi dung dch AgNO3 NH3 to kt ta l A B C D Cõu 399 Cho cỏc cht sau: phenol, etanol, axit axetic, natri phenolat, natri hiroxit S cp cht tỏc dng c vi l A B C D Cõu 400 Cho cỏc cht: etyl axetat, anilin, ancol (ru) etylic, axit acrylic, phenol, phenylamoni clorua, ancol (ru) benzylic, p-crezol Trong cỏc cht ny, s cht tỏc dng c vi dung dch NaOH l A B C D Cõu 401 Cho tng cht H2NCH2COOH, CH3COOH, CH3COOCH3 ln lt tỏc dng vi dung dch NaOH (to) v vi dung dch HCl (to) S phn ng xy l A B C D Cõu 402 Cho cỏc cht sau: CH3-CH2-CHO (1), CH2=CH-CHO (2), (CH3)2CH-CHO (3), CH2=CH-CH2-OH (4) Nhng cht phn ng hon ton vi lng d H2 (Ni, to) cựng to mt sn phm l: A (1), (3), (4) B (2), (3), (4) C (1), (2), (3) D (1), (2), (4) Cõu 403 Cho cỏc cht HCl (X); C2H5OH (Y); CH3COOH (Z); C6H5OH (phenol) (T) Dóy gm cỏc cht c sp xp theo tớnh axit tng dn (t trỏi sang phi) l: A (T), (Y), (X), (Z) B (X), (Z), (T), (Y) C (Y), (T), (X), (Z) D (Y), (T), (Z), (X) Cõu 404 Cho cỏc cht: axit propionic (X), axit axetic (Y), ancol (ru) etylic (Z) v imetyl ete (T) Dóy gm cỏc cht c sp xp theo chiu tng dn nhit sụi l A T, Z, Y, X B Z, T, Y, X C T, X, Y, Z D Y, T, X, Z Cõu 405 Dóy gm cỏc cht c xp theo chiu nhit sụi tng dn t trỏi sang phi l: A CH3CHO, C2H5OH, C2H6, CH3COOH B C2H6, C2H5OH, CH3CHO, CH3COOH C C2H6, CH3CHO, C2H5OH, CH3COOH D CH3COOH, C2H6, CH3CHO, C2H5OH PHN LOI CC DNG CU HI TRONG THI HC 2007 -2008 -2009-2010 Cõu 406 Dóy gm cỏc cht c sp xp theo chiu tng dn nhit sụi t trỏi sang phi l: A CH3COOH, HCOOH, C2H5OH, CH3CHO B HCOOH, CH3COOH, C2H5OH, CH3CHO C CH3COOH, C2H5OH, HCOOH, CH3CHO D CH3CHO, C2H5OH, HCOOH, CH3COOH Cõu 407 Dóy gm cỏc cht u lm giy qu tớm m chuyn sang mu xanh l: A amoni clorua, metyl amin, natri hiroxit B metyl amin, amoniac, natri axetat C anilin, amoniac, natri hiroxit D anilin, metyl amin, amoniac Cõu 408 Cú cht lng benzen, anilin, stiren, ng riờng bit l mt nhón Thuc th phõn bit cht lng trờn l A dung dch NaOH B dung dch phenolphtalein C giy quỡ tớm D nc brom Cõu 409 Ch dựng Cu(OH)2 cú th phõn bit c tt c cỏc dung dch riờng bit sau: A lũng trng trng, glucoz, fructoz, glixerin (glixerol).B saccaroz, glixerin (glixerol), anehit axetic, ru (ancol) etylic C glucoz, mantoz, glixerin (glixerol), anehit axetic D glucoz, lũng trng trng, glixerin (glixerol), ru (ancol) etylic Cõu 410 Cú ba dung dch: amoni hirocacbonat, natri aluminat, natri phenolat v ba cht lng: ancol etylic, benzen, anilin ng sỏu ng nghim riờng bit Nu ch dựng mt thuc th nht l dung dch HCl thỡ nhn bit c ti a bao nhiờu ng nghim? A B C D Cõu 411 Phỏt biu ỳng l: A Tớnh axit ca phenol yu hn ca ru (ancol) B Tớnh baz ca anilin mnh hn ca amoniac C Cỏc cht etilen, toluen v stiren u tham gia phn ng trựng hp D Cao su thiờn nhiờn l sn phm trựng hp ca isopren Cõu 412 Phỏt biu khụng ỳng l: A Phenol phn ng vi dung dch NaOH, ly mui va to cho tỏc dng vi dung dch HCl li thu c phenol B Axit axetic phn ng vi dung dch NaOH, ly dung dch mui va to cho tỏc dng vi khớ CO2 li thu c axit axetic C Anilin phn ng vi dung dch HCl, ly mui va to cho tỏc dng vi dung dch NaOH li thu c anilin D Dung dch natri phenolat phn ng vi khớ CO2, ly kt ta va to cho tỏc dng vi dung dch NaOH li thu c natri phenolat Cõu 413 Phỏt biu no sau õy l ỳng? A Anilin tỏc dng vi axit nitr un núng, thu c mui iazoni B Benzen lm mt mu nc brom nhit thng C Cỏc ancol a chc u phn ng vi Cu(OH)2 to dung dch mu xanh lam D Etylamin phn ng vi axit nitr nhit thng, sinh bt khớ Cõu 414 Cho s chuyn hoỏ sau: C3H4O2 + NaOH X + Y X + H2SO4 loóng Z + T Bit Y v Z u cú phn ng gng Hai cht Y, Z tng ng l: A HCHO, HCOOH B HCOONa, CH3CHO.C CH3CHO, HCOOH D HCHO, CH3CHO Cõu 415 Cho s chuyn húa sau (mi mi tờn l mt phng trỡnh phn ng): Tinh bt X Y Z metyl axetat.Cỏc cht Y, Z s trờn ln lt l: A C2H4, CH3COOH B C2H5OH, CH3COOH.C CH3COOH, C2H5OH D CH3COOH, CH3OH Cõu 416 Cho s chuyn hoỏ sau: +X + NaOH d Phenol phenyl axetat Y (hợp chất thơm) to Hai cht X, Y s trờn ln lt l: A anhirit axetic, natri phenolat C axit axetic, phenol Cõu 417 Cho cỏc chuyn hoỏ sau: B axit axetic, natri phenolat D anhirit axetic, phenol o xt, t X + H O Y Ni Y + H Sobitol to Y + 2AgNO3 + 3NH + H 2O Amoni gluconat + 2Ag + NH NO3 xt Y E + G diệp lục Z + H O X + G ỏnh sỏng X, Y v Z ln lt l: A tinh bt, glucoz v ancol etylic C xenluloz, fructoz v khớ cacbonic Cõu 418 Cho s phn ng: B tinh bt, glucoz v khớ cacbonic D xenluloz, glucoz v khớ cacbon oxit +CH 3I +HNNO +CuO NH X Y Z (1:1) to Bit Z cú kh nng tham gia phn ng gng Hai cht Y v Z ln lt l: A C2H5OH, HCHO B C2H5OH, CH3CHO C CH3OH, HCHO Cõu 419 Cho s chuyn húa: D CH3OH, HCOOH + + H3 O + KCN CH 3CH 2Cl X Y Cụng thc cu to ca X, Y ln lt l: to A CH3CH2CN, CH3CH2CHO B CH3CH2CN, CH3CH2COONH4 C CH3CH2CN, CH3CH2COOH D CH3CH2NH2, CH3CH2COOH Cõu 420 Ba cht hu c mch h X, Y, Z cú cựng cụng thc phõn t C3H6O v cú cỏc tớnh cht: X, Z u phn ng vi nc brom; X, Y, Z u phn ng vi H2 nhng ch cú Z khụng b thay i nhúm chc; cht Y ch tỏc dng vi brom cú mt CH3COOH Cỏc cht X, Y, Z ln lt l: A C2H5CHO, CH2=CH-O-CH3, (CH3)2CO B C2H5CHO, (CH3)2CO, CH2=CH-CH2OH C (CH3)2CO, C2H5CHO, CH2=CH-CH2OH D CH2=CH-CH2OH, C2H5CHO, (CH3)2CO PHN LOI CC DNG CU HI TRONG THI HC 2007 -2008 -2009-2010 HểA HC HU C Cõu 421 S ng phõn hirocacbon thm ng vi cụng thc phõn t C8H10 l A B C D Cõu 422 Cho cỏc cht sau: CH2=CH-CH2-CH2-CH=CH2, CH2=CH-CH=CH-CH2-CH3, CH3-C(CH3)=CH-CH3, CH2=CH-CH2CH=CH2 S cht cú ng phõn hỡnh hc l A B C D Cõu 423 Cho cỏc cht sau: CH2=CH-CH=CH2; CH3-CH2-CH=C(CH3)2; CH3-CH=CH-CH=CH2; CH3-CH=CH2; CH3-CH=CHCOOH S cht cú ng phõn hỡnh hc l A B C D Cõu 424 Ba hirocacbon X, Y, Z l ng ng k tip, lng phõn t ca Z bng ln lng phõn t ca X Cỏc cht X, Y, Z thuc dóy ng ng A anken B ankin C ankaien D ankan Cõu 425 Cụng thc n gin nht ca mt hirocacbon l CnH2n+1 Hirocacbon ú thuc dóy ng ng ca A anken B ankin C ankan D ankaien Cõu 426 Cho cỏc cht: xiclobutan, 2-metylpropen, but-1-en, cis-but-2-en, 2-metylbut-2-en Dóy gm cỏc cht sau phn ng vi H2 (d, xỳc tỏc Ni, to), cho cựng mt sn phm l: A xiclobutan, 2-metylbut-2-en v but-1-en B 2-metylpropen, cis-but-2-en v xiclobutan C xiclobutan, cis-but-2-en v but-1-en D but-1-en, 2-metylpropen v cis-but-2-en Cõu 427 Hn hp khớ X gm anken M v ankin N cú cựng s nguyờn t cacbon phõn t Hn hp X cú lng 12,4 gam v th tớch 6,72 lớt ( ktc) S mol, cụng thc phõn t ca M v N ln lt l A 0,1 mol C3H6 v 0,2 mol C3H4 B 0,2 mol C3H6 v 0,1 mol C3H4 C 0,2 mol C2H4 v 0,1 mol C2H2 D 0,1 mol C2H4 v 0,2 mol C2H2 Cõu 428 kh hon ton 200 ml dung dch KMnO4 0,2M to thnh cht rn mu nõu en cn V lớt khớ C2H4 ( ktc) Giỏ tr ti thiu ca V l A 2,240 B 2,688 C 4,480 D 1,344 Cõu 429 Ba hirocacbon X, Y, Z k tip dóy ng ng, ú lng phõn t Z gp ụi lng phõn t X t chỏy 0,1 mol cht Y, sn phm khớ hp th hon ton vo dung dch Ca(OH)2 (d), thu c s gam kt ta l A 30 B 40 C 10 D 20 Cõu 430 t chỏy hon ton mt hirocacbon X thu c 0,11 mol CO2 v 0,132 mol H2O Khi X tỏc dng vi khớ clo (theo t l s mol 1:1) thu c mt sn phm hu c nht Tờn gi ca X l A 2-Metylpropan B etan C 2-Metylbutan D 2,2-imetylpropan Cõu 431 t chỏy hon ton mt th tớch khớ thiờn nhiờn gm metan, etan, propan bng oxi khụng khớ (trong khụng khớ, oxi chim 20% th tớch), thu c 7,84 lớt khớ CO2 ( ktc) v 9,9 gam nc Th tớch khụng khớ (ktc) nh nht cn dựng t chỏy hon ton lng khớ thiờn nhiờn trờn l A 70,0 lớt B 78,4 lớt C 56,0 lớt D 84,0 lớt Cõu 432 Hn hp X cú t so vi H2 l 21,2 gm propan, propen v propin Khi t chỏy hon ton 0,1 mol X, tng lng ca CO2 v H2O thu c l A 18,60 gam B 18,96 gam C 20,40 gam D 16,80 gam Cõu 433 t chỏy hon ton lớt hn hp khớ gm C2H2 v hirocacbon X sinh lớt khớ CO2 v lớt hi H2O (cỏc th tớch khớ v hi o cựng iu kin nhit , ỏp sut) Cụng thc phõn t ca X l A CH4 B C2H4 C C2H6 D C3H8 Cõu 434 t chỏy hon ton hn hp M gm mt ankan X v mt ankin Y, thu c s mol CO2 bng s mol H2O Thnh phn phn trm v s mol ca X v Y hn hp M ln lt l A 50% v 50% B 20% v 80% C 75% v 25% D 35% v 65% Cõu 435 Hn hp gm hirocacbon X v oxi cú t l s mol tng ng l 1:10 t chỏy hon ton hn hp trờn thu c hn hp khớ Y Cho Y qua dung dch H2SO4 c, thu c hn hp khớ Z cú t i vi hiro bng 19 Cụng thc phõn t ca X l A C3H6 B C3H8 C C4H8 D C3H4 Cõu 436 t chỏy hon ton 20,0 ml hn hp X gm C3H6, CH4, CO (th tớch CO gp hai ln th tớch CH4), thu c 24,0 ml CO2 (cỏc th tớch khớ o cựng iu kin nhit v ỏp sut) T ca X so vi khớ hiro l A 22,2 B 25,8 C 11,1 D 12,9 Cõu 437 Trong mt bỡnh kớn cha hi cht hu c X (cú dng CnH2nO2) mch h v O2 (s mol O2 gp ụi s mol cn cho phn ng chỏy) 139,9oC, ỏp sut bỡnh l 0,8 atm t chỏy hon ton X sau ú a v nhit ban u, ỏp sut bỡnh lỳc ny l 0,95 atm X cú cụng thc phõn t l A C2H4 O2 B C4H8O2 C C3H6O2 D CH2O2 Cõu 438 Hirocacbon X khụng lm mt mu dung dch brom nhit thng Tờn gi ca X l A stiren B xiclohexan C xiclopropan D etilen Cõu 439 Hirat húa anken ch to thnh ancol (ru) Hai anken ú l A eten v but-2-en (hoc buten-2) B eten v but-1-en (hoc buten-1) C propen v but-2-en (hoc buten-2) D 2-metylpropen v but-1-en (hoc buten-1) Cõu 440 Mt hirocacbon X cng hp vi axit HCl theo t l mol 1:1 to sn phm cú thnh phn lng clo l 45,223% Cụng thc phõn t ca X l A C4H8 B C2H4 C C3H6 D C3H4 Cõu 441 Cho hirocacbon X phn ng vi brom (trong dung dch) theo t l mol : 1, thu c cht hu c Y (cha 74,08% Br v lng) Khi X phn ng vi HBr thỡ thu c hai sn phm hu c khỏc Tờn gi ca X l A but-2-en B xiclopropan C but-1-en D propilen Cõu 442 un núng hn hp khớ gm 0,06 mol C2H2 v 0,04 mol H2 vi xỳc tỏc Ni, sau mt thi gian thu c hn hp khớ Y Dn ton b hn hp Y li t t qua bỡnh ng dung dch brom (d) thỡ cũn li 0,448 lớt hn hp khớ Z ( ktc) cú t so vi O2 l 0,5 Khi lng bỡnh dung dch brom tng l A 1,64 gam B 1,32 gam C 1,04 gam D 1,20 gam PHN LOI CC DNG CU HI TRONG THI HC 2007 -2008 -2009-2010 Cõu 443 Hn hp khớ X gm H2 v C2H4 cú t so vi He l 3,75 Dn X qua Ni nung núng, thu c hn hp khớ Y cú t so vi He l Hiu sut ca phn ng hiro hoỏ l A 25% B 50% C 20% D 40% Cõu 444 Hn hp khớ X gm H2 v mt anken cú kh nng cng HBr cho sn phm hu c nht T ca X so vi H2 bng 9,1 un núng X cú xỳc tỏc Ni, sau phn ng xy hon ton, thu c hn hp khớ Y khụng lm mt mu nc brom; t ca Y so vi H2 bng 13 Cụng thc cu to ca anken l A CH2=CH2 B CH3-CH=CH-CH3 C CH2=CH-CH2-CH3 D CH2=C(CH3)2 Cõu 445 Hn hp khớ X gm 0,3 mol H2 v 0,1 mol vinylaxetilen Nung X mt thi gian vi xỳc tỏc Ni thu c hn hp khớ Y cú t so vi khụng khớ l Nu cho ton b Y sc t t vo dung dch brom (d) thỡ cú m gam brom tham gia phn ng Giỏ tr ca m l A 8,0 B 16,0 C 32,0 D 3,2 Cõu 446 Dn 1,68 lớt hn hp khớ X gm hai hirocacbon vo bỡnh ng dung dch brom (d) Sau phn ng xy hon ton, cú gam brom ó phn ng v cũn li 1,12 lớt khớ Nu t chỏy hon ton 1,68 lớt X thỡ sinh 2,8 lớt khớ CO2 Cụng thc phõn t ca hai hirocacbon l (bit cỏc th tớch khớ u o ktc) A CH4 v C2H4 B CH4 v C3H4 C CH4 v C3H6 D C2H6 v C3H6 Cõu 447 Cho 4,48 lớt hn hp X ( ktc) gm hirocacbon mch h li t t qua bỡnh cha 1,4 lớt dung dch Br2 0,5M Sau phn ng hon ton, s mol Br2 gim i mt na v lng bỡnh tng thờm 6,7 gam Cụng thc phõn t ca hirocacbon l A C2H2 v C3H8 B C3H4 v C4H8 C C2H2 v C4H6 D C2H2 v C4H8 Cõu 448 Dn V lớt ( ktc) hn hp X gm axetilen v hiro i qua ng s ng bt niken nung núng, thu c khớ Y Dn Y vo lng d AgNO3 dung dch NH3 thu c 12 gam kt ta Khớ i dung dch phn ng va vi 16 gam brom v cũn li khớ Z t chỏy hon ton khớ Z thu c 2,24 lớt khớ CO2 ( ktc) v 4,5 gam nc Giỏ tr ca V bng A 5,60 B 13,44 C 8,96 D 11,2 Cõu 449 Khi crackinh hon ton mt th tớch ankan X thu c ba th tớch hn hp Y (cỏc th tớch khớ o cựng iu kin nhit v ỏp sut); t ca Y so vi H2 bng 12 Cụng thc phõn t ca X l A C5H12 B C3H8 C C4H10 D C6H14 Cõu 450 Cho hn hp X gm CH4, C2H4 v C2H2 Ly 8,6 gam X tỏc dng ht vi dung dch brom (d) thỡ lng brom phn ng l 48 gam Mt khỏc, nu cho 13,44 lớt ( ktc) hn hp khớ X tỏc dng vi lng d dung dch AgNO3 NH3, thu c 36 gam kt ta Phn trm th tớch ca CH4 cú X l A 40% B 25% C 20% D 50% Cõu 451 Cho iso-pentan tỏc dng vi Cl2 theo t l s mol : 1, s sn phm monoclo ti a thu c l A B C D Cõu 452 Khi brom húa mt ankan ch thu c mt dn xut monobrom nht cú t hi i vi hiro l 75,5 Tờn ca ankan ú l A 3,3-imetylhecxan B 2,2,3-trimetylpentan C isopentan D 2,2-imetylpropan Cõu 453 Khi cho ankan X (trong phõn t cú phn trm lng cacbon bng 83,72%) tỏc dng vi clo theo t l s mol 1:1 (trong iu kin chiu sỏng) ch thu c dn xut monoclo ng phõn ca Tờn ca X l A 3-metylpentan B 2-metylpropan C butan D 2,3-imetylbutan Cõu 454 Hirocacbon mch h X phõn t ch cha liờn kt v cú hai nguyờn t cacbon bc ba mt phõn t t chỏy hon ton th tớch X sinh th tớch CO2 ( cựng iu kin nhit , ỏp sut) Khi cho X tỏc dng vi Cl2 (theo t l s mol : 1), s dn xut monoclo ti a sinh l A B C D Dn xut halogen, ancol, phenol: + Cõu 455 Cho cỏc cht cú cụng thc cu to nh sau: HOCH2-CH2OH (X); CH2-CH2-CH2OH (Y); HOCH2-CHOH-CH2OH (Z); CH3-CH2-O-CH2-CH3 (R); CH3-CHOH-CH2OH (T) Nhng cht tỏc dng c vi Cu(OH)2 to thnh dung dch mu xanh lam l A Z, R, T B X, Y, R, T C X, Y, Z, T D X, Z, T Cõu 456 Cho cỏc hp cht sau: (a) HOCH2-CH2OH.(b)HOCH2CH2CH2OH (c)HOCH2-CH(OH)-CH2OH (d)CH3CH(OH)CH2OH (e) CH3-CH2OH.(f) CH3-O-CH2CH3 Cỏc cht u tỏc dng c vi Na, Cu(OH)2 l: A (c), (d), (e) B (a), (b), (c) C (c), (d), (f) D (a), (c), (d) Cõu 457 Cú bao nhiờu ru (ancol) bc 2, no, n chc, mch h l ng phõn cu to ca m phõn t ca chỳng cú phn trm lng cacbon bng 68,18%? A B C D Cõu 458 Mt hp cht X cha ba nguyờn t C, H, O cú t l lng mC : mH : mO = 21 : : Hp cht X cú cụng thc n gin nht trựng vi cụng thc phõn t S ng phõn cu to thuc loi hp cht thm ng vi cụng thc phõn t ca X l A B C D Cõu 459 Hp cht hu c X tỏc dng c vi dung dch NaOH v dung dch brom nhng khụng tỏc dng vi dung dch NaHCO3 Tờn gi ca X l A phenol B axit acrylic C metyl axetat D anilin Cõu 460 Khi phõn tớch thnh phn mt ancol n chc X thỡ thu c kt qu: tng lng ca cacbon v hiro gp 3,625 ln lng oxi S ng phõn ru (ancol) ng vi cụng thc phõn t ca X l A B C D Cõu 461 Dóy gm cỏc cht u tỏc dng vi ancol etylic l: A Ca, CuO (to), C6H5OH (phenol), HOCH2CH2OH B HBr (to), Na, CuO (to), CH3COOH (xỳc tỏc) C Na2CO3, CuO (to), CH3COOH (xỳc tỏc), (CH3CO)2O D NaOH, K, MgO, HCOOH (xỳc tỏc) Cõu 462 Trong thc t, phenol c dựng sn xut A nha rezol, nha rezit v thuc tr sõu 666 PHN LOI CC DNG CU HI TRONG THI HC 2007 -2008 -2009-2010 B poli(phenol-fomanehit), cht dit c 2,4-D v axit picric C nha poli(vinyl clorua), nha novolac v cht dit c 2,4-D D nha rezit, cht dit c 2,4-D v thuc n TNT Cõu 463 Dóy gm cỏc cht u phn ng vi phenol l: A nc brom, anehit axetic, dung dch NaOH B nc brom, axit axetic, dung dch NaOH C dung dch NaCl, dung dch NaOH, kim loi Na D nc brom, anhirit axetic, dung dch NaOH Cõu 464 nh hng ca nhúm -OH n gc C6H5- phõn t phenol th hin qua phn ng gia phenol vi A nc Br2 B dung dch NaOH C H2 (Ni, nung núng) D Na kim loi X Y Z Cõu 465 Cho s C H Fe, t o t o cao,P cao + Cl (1:1) Hai cht hu c Y, Z ln lt l: A C6H5ONa, C6H5OH Cõu 466 Cho cỏc phn ng : HBr + C2H5OH + NaOH, du B C6H5OH, C6H5Cl t + HCl C C6H4(OH)2, C6H4Cl2 D C6H6(OH)6, C6H6Cl6 C2H4 + Br2 C2H4 + HBr S phn ng to C2H5Br l : A Cõu 467 Cho s chuyn hoỏ: C2H6 + Br2 askt(1:1mol) B C D H 2SO4 đặc + HBr + Mg, etekhan Butan - - ol X(anken) Y Z to Trong ú X, Y, Z l sn phm chớnh Cụng thc ca Z l A CH3-CH(MgBr)-CH2-CH3 B (CH3)2CH-CH2-MgBr C CH3-CH2-CH2 -CH2-MgBr.D (CH3)3C-MgBr Cõu 468 Cho s chuyn hoỏ sau : 0 + Br2 (1:1mol),Fe,t + NaOH (dử ),t ,p + HCl(dử ) Toluen X Y Z Trong ú X, Y, Z u l hn hp ca cỏc cht hu c, Z cú thnh phn chớnh gm : A o-bromtoluen v p-bromtoluen B m-metylphenol v o-metylphenol C benzyl bromua v o-bromtoluen D o-metylphenol v p-metylphenol Cõu 469 t chỏy hon ton mt ancol a chc, mch h X, thu c H2O v CO2 vi t l s mol tng ng l 3:2 Cụng thc phõn t ca X l A C2H6O B C3H8O2 C C2H6O2 D C4H10O2 Cõu 470 Khi thc hin phn ng tỏch nc i vi ancol X, ch thu c mt anken nht Oxi hoỏ hon ton mt lng cht X thu c 5,6 lớt CO2 ( ktc) v 5,4 gam nc Cú bao nhiờu cụng thc cu to phự hp vi X? A B C D Cõu 471 t chỏy hon ton hn hp M gm hai ru (ancol) X v Y l ng ng k tip ca nhau, thu c 0,3 mol CO2 v 0,425 mol H2O Mt khỏc, cho 0,25 mol hn hp M tỏc dng vi Na (d), thu c cha n 0,15 mol H2 Cụng thc phõn t ca X, Y l: A C2H6O2, C3H8O2 B C3H6OvC4H8O C C2H6OvC3H8O D C2H6O v CH4O Cõu 472 t chỏy hon ton mt ru (ancol) X thu c CO2 v H2O cú t l s mol tng ng l : Th tớch khớ oxi cn dựng t chỏy X bng 1,5 ln th tớch khớ CO2 thu c ( cựng iu kin) Cụng thc phõn t ca X l A C3H8O3 B C3H4O C C3H8O D C3H8O2 Cõu 473 t chỏy hon ton 0,2 mol mt ancol X no, mch h cn va 17,92 lớt khớ O2 ( ktc) Mt khỏc, nu cho 0,1 mol X tỏc dng va vi m gam Cu(OH)2 thỡ to thnh dung dch cú mu xanh lam Giỏ tr ca m v tờn gi ca X tng ng l A 4,9 v propan-1,2-iol B 4,9 v propan-1,3-iol C 4,9 v glixerol D 9,8 v propan-1,2-iol Cõu 474 X l mt ancol (ru) no, mch h t chỏy hon ton 0,05 mol X cn 5,6 gam oxi, thu c hi nc v 6,6 gam CO2 Cụng thc ca X l A C3H7OH B C2H4(OH)2 C C3H6(OH)2 D C3H5(OH)3 Cõu 475 Khi t chỏy hon ton m gam hn hp hai ancol no, n chc, mch h thu c V lớt khớ CO2 ( ktc) v a gam H2O Biu thc liờn h gia m, a v V l: A m = 2a + V/11,2 B m = a + V/5,6 C m = 2a - V/22,4 D m = a - V/5,6 Cõu 476 Cho hn hp X gm hai ancol a chc, mch h, thuc cựng dóy ng ng t chỏy hon ton hn hp X, thu c CO2 v H2O cú t l mol tng ng l : Hai ancol ú l A C2H4(OH)2 v C3H6(OH)2 B C3H5(OH)3 v C4H7(OH)3 C C2H4(OH)2 v C4H8(OH)2 D C2H5OH v C4H9OH Cõu 477 Cho hn hp hai anken ng ng k tip tỏc dng vi nc (cú H2SO4 lm xỳc tỏc) thu c hn hp Z gm hai ru (ancol) X v Y t chỏy hon ton 1,06 gam hn hp Z sau ú hp th ton b sn phm chỏy vo lớt dung dch NaOH 0,1M thu c dung dch T ú nng ca NaOH bng 0,05M Cụng thc cu to thu gn ca X v Y l (th tớch dung dch thay i khụng ỏng k) A C3H7OH v C4H9OH B C2H5OH v C3H7OH C C2H5OH v C4H9OH D C4H9OH v C5H11OH Cõu 478 Khi t 0,1 mol mt cht X (dn xut ca benzen), lng CO2 thu c nh hn 35,2 gam Bit rng, mol X ch tỏc dng c vi mol NaOH Cụng thc cu to thu gn ca X l A C2H5C6H4OH B C6H4 (OH)2 C HOCH2C6H4COOH D HO C6H4CH2OH Cõu 479 S cht ng vi cụng thc phõn t C7H8O (l dn xut ca benzen) u tỏc dng c vi dung dch NaOH l A B C D Cõu 480 Cỏc ng phõn ng vi cụng thc phõn t C8H10O (u l dn xut ca benzen) cú tớnh cht: tỏch nc thu c sn phm cú th trựng hp to polime, khụng tỏc dng c vi NaOH S lng ng phõn ng vi cụng thc phõn t C8H10O, tho tớnh cht trờn l A B C D PHN LOI CC DNG CU HI TRONG THI HC 2007 -2008 -2009-2010 Cõu 481 Hp cht hu c X (phõn t cú vũng benzen) cú cụng thc phõn t l C7H8O2, tỏc dng c vi Na v vi NaOH Bit rng cho X tỏc dng vi Na d, s mol H2 thu c bng s mol X tham gia phn ng v X ch tỏc dng c vi NaOH theo t l s mol 1:1 Cụng thc cu to thu gn ca X l A CH3OC6H4OH B CH3C6H3(OH)2 C HOC6H4CH2OH D C6H5CH(OH)2 Cõu 482 Cho X l hp cht thm; a mol X phn ng va ht vi a lớt dung dch NaOH 1M Mt khỏc, nu cho a mol X phn ng vi Na (d) thỡ sau phn ng thu c 22,4a lớt khớ H2 ( ktc) Cụng thc cu to thu gn ca X l A CH3-C6H3(OH)2 B HO-CH2-C6H4-OH C HO-C6H4-COOH D HO-C6H4-COOCH3 Cõu 483 Khi un núng hn hp ru (ancol) gm CH3OH v C2H5OH (xỳc tỏc H2SO4 c, 140oC) thỡ s ete thu c ti a l A B C D Cõu 484 Khi tỏch nc t ru (ancol) 3-metylbutanol-2 (hay 3-metylbutan-2-ol), sn phm chớnh thu c l A 3-metylbuten-1 (hay 3-metylbut-1-en) B 2-metylbuten-2 (hay 2-metylbut-2-en) C 2-metylbuten-3 (hay 2-metylbut-3-en) D 3-metylbuten-2 (hay 3-metylbut-2-en) Cõu 485 Khi tỏch nc t mt cht X cú cụng thc phõn t C4H10O to thnh ba anken l ng phõn ca (tớnh c ng phõn hỡnh hc) Cụng thc cu to thu gn ca X l A CH3CH(CH3)CH2OH B CH3OCH2CH2CH3 C CH3CH(OH)CH2CH3 D (CH3)3COH Cõu 486 un núng hn hp gm hai ru (ancol) n chc, mch h, k tip dóy ng ng vi H2SO4 c 140oC Sau cỏc phn ng kt thỳc, thu c gam hn hp gm ba ete v 1,8 gam nc Cụng thc phõn t ca hai ancol trờn l A CH3OH v C2H5OH B C3H5OH v C4H7OH C C3H7OH v C4H9OH D C2H5OH v C3H7OH Cõu 487 X phũng húa hon ton 66,6 gam hn hp hai este HCOOC2H5 v CH3COOCH3 bng dung dch NaOH, thu c hn hp X gm hai ancol un núng hn hp X vi H2SO4 c 140 oC, sau phn ng xy hon ton thu c m gam nc Giỏ tr ca m l A 18,00 B 16,20 C 8,10 D 4,05 Cõu 488 un núng mt ru (ancol) n chc X vi dung dch H2SO4 c iu kin nhit thớch hp sinh cht hu c Y, t hi ca X so vi Y l 1,6428 Cụng thc phõn t ca Y l A C2H6O B C3H8O C CH4O D C4H8O Cõu 489 un núng hn hp hai ancol n chc, mch h vi H2SO4 c, thu c hn hp gm cỏc ete Ly 7,2 gam mt cỏc ete ú em t chỏy hon ton, thu c 8,96 lớt khớ CO2 ( ktc) v 7,2 gam H2O Hai ancol ú l A C2H5OH v CH2=CH-CH2-OH B CH3OH v C3H7OH C C2H5OH v CH3OH D CH3OH v CH2=CH-CH2-OH Cõu 490 Oxi hoỏ ancol n chc X bng CuO (un núng), sinh mt sn phm hu c nht l xeton Y (t hi ca Y so vi khớ hiro bng 29) Cụng thc cu to ca X l A CH3-CO-CH3 B CH3-CHOH-CH3 C CH3-CH2-CH2-OH D CH3-CH2-CHOH-CH3 Cõu 491 Hn hp X gm hai ancol no, n chc, mch h, k tip dóy ng ng Oxi hoỏ hon ton 0,2 mol hn hp X cú lng m gam bng CuO nhit thớch hp, thu c hn hpsn phm hu c Y Cho Y tỏc dng vi mt lng d dung dch AgNO3 NH3, thu c 54 gam Ag Giỏ tr ca m l A 13,5 B 15,3 C 8,5 D 8,1 Cõu 492 Cho m gam mt ancol (ru) no, n chc X qua bỡnh ng CuO (d), nung núng Sau phn ng hon ton, lng cht rn bỡnh gim 0,32 gam Hn hp hi thu c cú t i vi hiro l 15,5 Giỏ tr ca m l A 0,64 B 0,92 C 0,46 D 0,32 Cõu 493 Cho m gam hn hp X gm hai ru (ancol) no, n chc, k tip dóy ng ng tỏc dng vi CuO (d) nung núng, thu c mt hn hp rn Z v mt hn hp hi Y (cú t hi so vi H2 l 13,75) Cho ton b Y phn ng vi mt lng d Ag2O (hoc AgNO3) dung dch NH3 un núng, sinh 64,8 gam Ag Giỏ tr ca m l A 9,2 B 7,4 C 8,8 D 7,8 Cõu 494 Oxi hoỏ m gam etanol thu c hn hp X gm axetanehit, axit axetic, nc v etanol d Cho ton b X tỏc dng vi dung dch NaHCO3 (d), thu c 0,56 lớt khớ CO2 ( ktc) Khi lng etanol ó b oxi hoỏ to axit l A 1,15 gam B 5,75 gam C 4,60 gam D 2,30 gam Cõu 495 Oxi hoỏ 1,2 gam CH3OH bng CuO nung núng, sau mt thi gian thu c hn hp sn phm X (gm HCHO, H2O v CH3OH d) Cho ton b X tỏc dng vi lng d Ag2O (hoc AgNO3) dung dch NH3, c 12,96 gam Ag Hiu sut ca phn ng oxi hoỏ CH3OH l A 80,0% B 70,4% C 76,6% D 65,5% Anehit, xeton, axit cacboxylic: + Cõu 496 Cho cỏc cht: HCN, H2, dung dch KMnO4, dung dch Br2 S cht phn ng c vi (CH3)2CO l A B C D Cõu 497 Dóy gm cỏc cht u iu ch trc tip (bng mt phn ng) to anehit axetic l: A CH3COOH, C2H2, C2H4 B C2H5OH, C2H4, C2H2 C HCOOC2H3, C2H2, CH3COOH D C2H5OH, C2H2, CH3COOC2H5 Cõu 498 Dóy gm cỏc cht cú th iu ch trc tip (bng mt phn ng) to axit axetic l: A CH3CHO, C6H12O6 (glucoz), CH3OH B C2H4(OH)2, CH3OH, CH3CHO C CH3CHO, C2H5OH, C2H5COOCH3 D CH3OH, C2H5OH, CH3CHO Cõu 499 Quỏ trỡnh no sau õy khụng to anehit axetic? A CH3COOCH=CH2 + dung dch NaOH (to) B CH2=CH2 + O2 (to, xỳc tỏc) C CH2=CH2 + H2O (to, xỳc tỏc HgSO4) D CH3CH2OH + CuO (to) Cõu 500 Trong cụng nghip, axeton c iu ch t A propan-1-ol B propan-2-ol C xiclopropan D cumen Cõu 501 S ng phõn xeton ng vi cụng thc phõn t C5H10O l A B C D Cõu 502 Axit cacboxylic no, mch h X cú cụng thc thc nghim (C3H4O3)n, vy cụng thc phõn t ca X l A C9H12O9 B C3H4O3 C C6H8O6 D C12H16O12 PHN LOI CC DNG CU HI TRONG THI HC 2007 -2008 -2009-2010 Cõu 503 Oxi hoỏ 4,48 lớt C2H4 ( ktc) bng O2 (xỳc tỏc PdCl2, CuCl2), thu c cht X n chc Ton b lng cht X trờn cho tỏc dng vi HCN (d) thỡ c 7,1 gam CH3CH(CN)OH (xianohirin) Hiu sut quỏ trỡnh to CH3CH(CN)OH t C2H4 l A 60% B 70% C 50% D 80% Cõu 504 un núng V lớt hi anehit X vi 3V lớt khớ H2 (xỳc tỏc Ni) n phn ng xy hon ton ch thu c mt hn hp khớ Y cú th tớch 2V lớt (cỏc th tớch khớ o cựng iu kin nhit , ỏp sut) Ngng t Y thu c cht Z; cho Z tỏc dng vi Na sinh H2 cú s mol bng s mol Z ó phn ng Cht X l anehit A khụng no (cha mt ni ụi C=C), hai chc B no, hai chc C khụng no (cha mt ni ụi C=C), n chc D no, n chc Cõu 505 Hai hp cht hu c X, Y cú cựng cụng thc phõn t C3H6O2 C X v Y u tỏc dng vi Na; X tỏc dng c vi NaHCO3 cũn Y cú kh nng tham gia phn ng bc Cụng thc cu to ca X v Y ln lt l A HCOOC2H5 v HOCH2COCH3 B HCOOC2H5 v HOCH2CH2CHO C C2H5COOH v HCOOC2H5 D C2H5COOH v CH3CH(OH)CHO Cõu 506 Hai hp cht hu c X v Y l ng ng k tip, u tỏc dng vi Na v cú phn ng bc Bit phn trm lng oxi X, Y ln lt l 53,33% v 43,24% Cụng thc cu to ca X v Y tng ng l A HCOOCH3 v HCOOCH2-CH3 B HO-CH(CH3)-CHO v HOOC-CH2-CHO C HO-CH2-CH2-CHO v HO-CH2-CH2-CH2-CHO D HO-CH2-CHO v HO-CH2-CH2-CHO Cõu 507 Cho cỏc hp cht hu c: (1) ankan;(2) ancol no, n chc, mch h; (3) xicloankan;(4) ete no, n chc, mch h; (5) anken;(6) ancol khụng no (cú mt liờn kt ụi C=C), mch h; (7) ankin; (8) anehit no, n chc, mch h;(9) axit no, n chc, mch h; (10) axit khụng no (cú mt liờn kt ụi C=C), n chc Dóy gm cỏc cht t chỏy hon ton u cho s mol CO2 bng s mol H2O l: A (2), (3), (5), (7), (9) B (3), (4), (6), (7), (10) C (3), (5), (6), (8), (9) D (1), (3), (5), (6), (8) Cõu 508 t chỏy hon ton a mol mt anehit X (mch h) to b mol CO2 v c mol H2O (bit b = a + c) Trong phn ng gng, mt phõn t X ch cho electron X thuc dóy ng ng anehit A no, hai chc B no, n chc C khụng no cú hai ni ụi, n chc D khụng no cú mt ni ụi, n chc Cõu 509 t chỏy hon ton mol hp cht hu c X, thu c mol CO2 Cht X tỏc dng c vi Na, tham gia phn ng bc v phn ng cng Br2 theo t l mol : Cụng thc cu to ca X l A HO-CH2-CH2-CH=CH-CHO B HOOC-CH=CH-COOH C HO-CH2-CH2-CH2-CHO D HO-CH2-CH=CH-CHO Cõu 510 t chỏy hon ton 0,1 mol mt axit cacboxylic n chc, cn va V lớt O2 ( ktc), thu c 0,3 mol CO2 v 0,2 mol H2O Giỏ tr ca V l A 6,72 B 4,48 C 8,96 D 11,2 Cõu 511 t chỏy hon ton mt hp cht hu c X, thu c 0,351 gam H2O v 0,4368 lớt khớ CO2 ( ktc) Bit X cú phn ng vi Cu(OH)2 mụi trng kim un núng Cht X l A CH2=CH-CH2-OH B C2H5CHO C CH3COCH3 D O=CH-CH=O Cõu 512 Hiro hoỏ hon ton hn hp M gm hai anehit X v Y no, n chc, mch h, k tip dóy ng ng (MX < MY), thu c hn hp hai ancol cú lng ln hn lng M l gam t chỏy hon ton M thu c 30,8 gam CO2 Cụng thc v phn trm lng ca X ln lt l A HCHO v 32,44% B CH3CHO v 49,44% C CH3CHO v 67,16% D HCHO v 50,56% Cõu 513 Hiro hoỏ hon ton m gam hn hp X gm hai anehit no, n chc, mch h, k tip dóy ng ng thu c (m + 1) gam hn hp hai ancol Mt khỏc, t chỏy hon ton cng m gam X thỡ cn va 17,92 lớt khớ O2 ( ktc) Giỏ tr ca m l A 10,5 B 8,8 C 24,8 D 17,8 Cõu 514 Cho hn hp khớ X gm HCHO v H2 i qua ng s ng bt Ni nung núng Sau phn ng xy hon ton, thu c hn hp khớ Y gm hai cht hu c t chỏy ht Y thỡ thu c 11,7 gam H2O v 7,84 lớt khớ CO2 ( ktc) Phn trm theo th tớch ca H2 X l A 35,00% B 65,00% C 53,85% D 46,15% Cõu 515 Cho dóy cỏc cht: HCHO, CH3COOH, CH3COOC2H5, HCOOH, C2H5OH, HCOOCH3 S cht dóy tham gia phn ng gng l A B C D Cõu 516 Cho hn hp gm 0,1 mol HCHO v 0,1 mol HCOOH tỏc dng vi lng d Ag2O (hoc AgNO3) dung dch NH3, un núng Sau cỏc phn ng xy hon ton, lng Ag to thnh l A 64,8 gam B 43,2 gam C 21,6 gam D 10,8 gam Cõu 517 t chỏy hon ton mt anehit X, thu c s mol CO2 bng s mol H2O Nu cho X tỏc dng vi lng d Ag2O (hoc AgNO3) dung dch NH3, sinh s mol Ag gp bn ln s mol X ó phn ng Cụng thc ca X l A (CHO)2 B C2H5CHO C CH3CHO D HCHO Cõu 518 Cho 0,1 mol anehit X tỏc dng vi lng d AgNO3 (hoc Ag2O) dung dch NH3, un núng thu c 43,2 gam Ag Hiro hoỏ X thu c Y, bit 0,1 mol Y phn ng va vi 4,6 gam Na Cụng thc cu to thu gn ca X l A CH3CH(OH)CHO B OHC-CHO C HCHO D CH3CHO Cõu 519 Cho 0,25 mol mt anehit mch h X phn ng vi lng d dung dch AgNO3 NH3, thu c 54 gam Ag Mt khỏc, cho X phn ng vi H2 d (xỳc tỏc Ni, to) thỡ 0,125 mol X phn ng ht vi 0,25 mol H2 Cht X cú cụng thc ng vi cụng thc chung l A CnH2n+1CHO (n 0) B CnH2n-1CHO (n 2) C CnH2n-3CHO (n 2) D CnH2n(CHO)2 (n 0) PHN LOI CC DNG CU HI TRONG THI HC 2007 -2008 -2009-2010 Cõu 520 Cho 2,9 gam mt anehit phn ng hon ton vi lng d AgNO3 (hoc Ag2O) dung dch NH3 thu c 21,6 gam Ag Cụng thc cu to thu gn ca anehit l A HCHO B CH2=CH-CHO C OHC-CHO D CH3CHO Cõu 521 Cho 6,6 gam mt anehit X n chc, mch h phn ng vi lng d AgNO3 (hoc Ag2O) dung dch NH3, un núng Lng Ag sinh cho phn ng ht vi axit HNO3 loóng, thoỏt 2,24 lớt khớ NO (sn phm kh nht, o ktc) Cụng thc cu to thu gn ca X l A HCHO B CH3CHO C CH2 = CHCHO D CH3CH2CHO Cõu 522 Cho 3,6 gam anehit n chc X phn ng hon ton vi mt lng d Ag2O (hoc AgNO3) dung dch NH3 un núng, thu c m gam Ag Ho tan hon ton m gam Ag bng dung dch HNO3 c, sinh 2,24 lớt NO2 (sn phm kh nht, ktc) Cụng thc ca X l A C3H7CHO B C2H5CHO C C4H9CHO D HCHO Cõu 523 Cho 0,1 mol hn hp X gm hai anehit no, n chc, mch h, k tip dóy ng ng tỏc dng vi lng d dung dch AgNO3 NH3, un núng thu c 32,4 gam Ag Hai anehit X l A HCHO v C2H5CHO B CH3CHO v C2H5CHO C C2H3CHO v C3H5CHO D HCHO v CH3CHO Cõu 524 Khi oxi húa hon ton 2,2 gam mt anehit n chc thu c gam axit tng ng Cụng thc ca anehit l A HCHO B CH3CHO C C2H3CHO D C2H5CHO Cõu 525 Khi cho a mol mt hp cht hu c X (cha C, H, O) phn ng hon ton vi Na hoc vi NaHCO3 thỡ u sinh a mol khớ Cht X l A axit aipic B ancol o-hiroxibenzylic C axit 3-hiroxipropanoic D etylen glicol Cõu 526 t chỏy hon ton a mol axit hu c Y c 2a mol CO2 Mt khỏc, trung hũa a mol Y cn va 2a mol NaOH Cụng thc cu to thu gn ca Y l A CH3-COOH B HOOC-COOH C C2H5-COOH D HOOC-CH2-CH2-COOH Cõu 527 Cho hn hp X gm hai axit cacboxylic no, mch khụng phõn nhỏnh t chỏy hon ton 0,3 mol hn hp X, thu c 11,2 lớt khớ CO2 ( ktc) Nu trung hũa 0,3 mol X thỡ cn dựng 500 ml dung dch NaOH 1M Hai axit ú l: A HCOOH, HOOC-CH2-COOH B HCOOH, C2H5COOH C HCOOH, CH3COOH D HCOOH, HOOC-COOH Cõu 528 Trung ho 5,48 gam hn hp gm axit axetic, phenol v axit benzoic, cn dựng 600 ml dung dch NaOH 0,1M Cụ cn dung dch sau phn ng, thu c hn hp cht rn khan cú lng l A 6,84 gam B 4,90 gam C 6,80 gam D 8,64 gam Cõu 529 trung hũa 6,72 gam mt axit cacboxylic Y (no, n chc), cn dựng 200 gam dung dch NaOH 2,24% Cụng thc ca Y l A C2H5COOH B HCOOH C C3H7COOH D CH3COOH Cõu 530 Cho 5,76 gam axit hu c X n chc, mch h tỏc dng ht vi CaCO3 thu c 7,28 gam mui ca axit hu c Cụng thc cu to thu gn ca X l A CH3COOH B CH2=CH-COOH C CH3-CH2-COOH D HCC-COOH Cõu 531 Cho 3,6 gam axit cacboxylic no, n chc X tỏc dng hon ton vi 500 ml dung dch gm KOH 0,12M v NaOH 0,12M Cụ cn dung dch thu c 8,28 gam hn hp cht rn khan Cụng thc phõn t ca X l A HCOOH B C3H7COOH C CH3COOH D C2H5COOH Cõu 532 Cho 0,04 mol mt hn hp X gm CH2=CH-COOH, CH3COOH v CH2=CH-CHO phn ng va vi dung dch cha 6,4 gam brom Mt khỏc, trung ho 0,04 mol X cn dựng va 40 ml dung dch NaOH 0,75 M Khi lng ca CH2=CH-COOH X l A 1,44 gam B 0,56 gam C 0,72 gam D 2,88 gam Cõu 533 Trung ho 8,2 gam hn hp gm axit fomic v mt axit n chc X cn 100 ml dung dch NaOH 1,5M Nu cho 8,2 gam hn hp trờn tỏc dng vi mt lng d dung dch AgNO3 NH3, un núng thỡ thu c 21,6 gam Ag Tờn gi ca X l A axit metacrylic B axit propanoic C axit acrylic D axit etanoic Cõu 534 Hn hp X gm axit Y n chc v axit Z hai chc (Y, Z cú cựng s nguyờn t cacbon) Chia X thnh hai phn bng Cho phn mt tỏc dng ht vi Na, sinh 4,48 lớt khớ H2 ( ktc).t chỏy hon ton phn hai, sinh 26,4 gam CO2 Cụng thc cu to thu gn v phn trm v lng ca Z hn hp X ln lt l A HOOC-CH2-COOH v 54,88% B HOOC-COOH v 42,86%.C HOOC-COOH v 60,00% D HOOC-CH2-COOH v 70,87% PHN LOI CC DNG CU HI TRONG THI HC 2007 -2008 -2009-2010 Cõu 169 Mt bỡnh phn ng cú dung tớch khụng i, cha hn hp khớ N2 v H2 vi nng tng ng l 0,3M v 0,7M Sau phn ng tng hp NH3 t trng thỏi cõn bng t oC, H2 chim 50% th tớch hn hp thu c Hng s cõn bng KC t oC ca phn ng cú giỏ tr l A 3,125 B 0,500 C 0,609 D 2,500 Cõu 170 Cho cỏc cõn bng sau: 2HI (k) (1) H (k) + I (k) 1 HI (k) (2) H (k) + I (k) 2 H (k) + I (k) (3) HI (k) 2 2HI (k) (5) H (k) + I (r) H (k) + I (k) (4) 2HI (k) nhit xỏc nh, nu KC ca cõn bng (1) bng 64 thỡ KC bng 0,125 l ca cõn bng A (5) B (4) C (3) D (2) [...]... ktc) hn hp Y gm hai khớ khụng mu, trong ú cú mt khớ húa nõu trong khụng khớ Khi lng ca Y l 5,18 gam Cho dung dch NaOH (d) vo X v un núng, khụng cú khớ mựi khai thoỏt ra Phn trm khi lng ca Al trong hn hp ban u l A 10, 52% B 19,53% C 15,25% D 12,80% PHN LOI CC DNG CU HI TRONG THI HC 2 007 -2 008 -2 009- 2 010 Cõu 284 Cho 6,72 gam Fe vo dung dch cha 0,3 mol H2SO4 c, núng (gi thit SO2 l sn phm kh duy nht) Sau... s kh ion Cl- D s kh ion Na+ PHN LOI CC DNG CU HI TRONG THI HC 2 007 -2 008 -2 009- 2 010 Cõu 265 in phõn núng chy Al2O3 vi anot than chỡ (hiu sut in phõn 100 %) thu c m kg Al catot v 67,2 m3 ( ktc) hn hp khớ X cú t khi so vi hiro bng 16 Ly 2,24 lớt ( ktc) hn hp khớ X sc vo dung dch nc vụi trong (d) thu c 2 gam kt ta Giỏ tr ca m l A 67,5 B 75,6 C 54,0 D 108 , 0 Cõu 266 in phõn dung dch cha a mol CuSO4 v b... Cu2+, Ag+ C Fe3+ cú tớnh oxi húa mnh hn Cu2+ D Fe kh c Cu2+ trong dung dch PHN LOI CC DNG CU HI TRONG THI HC 2 007 -2 008 -2 009- 2 010 Cõu 244 kh ion Cu2+ trong dung dch CuSO4 cú th dựng kim loi A Ba B K C Na D Fe Cõu 245 X l kim loi phn ng c vi dung dch H2SO4 loóng, Y l kim loi tỏc dng c vi dung dch Fe(NO3)3 Hai kim loi X, Y ln lt l (bit th t trong dóy th in hoỏ: Fe3+/Fe2+ ng trc Ag+/Ag) A Ag, Mg B Fe,... PHN LOI CC DNG CU HI TRONG THI HC 2 007 -2 008 -2 009- 2 010 A 0,24M B 0,48M C 0,2M D 0,4M Cõu 224 Cho dung dch cha 6,03 gam hn hp gm hai mui NaX v NaY (X, Y l hai nguyờn t cú trong t nhiờn, hai chu kỡ liờn tip thuc nhúm VIIA, s hiu nguyờn t ZX < ZY) vo dung dch AgNO3 (d), thu c 8,61 gam kt ta Phn trm khi lng ca NaX trong hn hp ban u l A 47,2% B 58,2% C 52,8% D 41,8% - NO3- TRONG H+ - NHIT PHN MUI NITRAT...PHN LOI CC DNG CU HI TRONG THI HC 2 007 -2 008 -2 009- 2 010 A NaNO3 v H2SO4 c B NaNO2 v H2SO4 c C NH3 v O2 D NaNO3 v HCl c Cõu 206 Cho Cu v dung dch H2SO4 loóng tỏc dng vi cht X (mt loi phõn bún húa hc), thy thoỏt ra khớ khụng mu húa nõu trong khụng khớ Mt khỏc, khi X tỏc dng vi dung dch NaOH thỡ cú khớ mựi khai thoỏt ra Cht X l A amophot B ure C natri nitrat D amoni nitrat Cõu 207 Phõn bún no sau õy... cụng thc phõn t C4H8O2 (vi xỳc tỏc axit), thu c 2 sn phm hu c X v Y T X cú th iu ch trc tip ra Y Vy cht X l PHN LOI CC DNG CU HI TRONG THI HC 2 007 -2 008 -2 009- 2 010 A etyl axetat B axit fomic C ru etylic D ru metylic Cõu 299 X phũng hoỏ mt hp cht cú cụng thc phõn t C10H14O6 trong dung dch NaOH (d), thu c glixerol v hn hp gm ba mui (khụng cú ng phõn hỡnh hc) Cụng thc ca ba mui ú l: A HCOONa, CHC-COONa... 338 -aminoaxit X cha mt nhúm -NH2 Cho 10, 3 gam X tỏc dng vi axit HCl (d), thu c 13,95 gam mui khan Cụng thc cu to thu gn ca X l A CH3CH2CH(NH2)COOH B H2NCH2COOH C CH3CH(NH2)COOH D H2NCH2CH2COOH Cõu 339 Cho 10 gam amin n chc X phn ng hon ton vi HCl (d), thu c 15 gam mui S ng phõn cu to ca X l A 5 B 7 C 8 D 4 PHN LOI CC DNG CU HI TRONG THI HC 2 007 -2 008 -2 009- 2 010 Cõu 340 Cho 5,9 gam amin n chc X tỏc... dung dch NaOH l A 2 B 4 C 3 D 1 Cõu 480 Cỏc ng phõn ng vi cụng thc phõn t C8H10O (u l dn xut ca benzen) cú tớnh cht: tỏch nc thu c sn phm cú th trựng hp to polime, khụng tỏc dng c vi NaOH S lng ng phõn ng vi cụng thc phõn t C8H10O, tho món tớnh cht trờn l A 4 B 3 C 2 D 1 PHN LOI CC DNG CU HI TRONG THI HC 2 007 -2 008 -2 009- 2 010 Cõu 481 Hp cht hu c X (phõn t cú vũng benzen) cú cụng thc phõn t l C7H8O2,... CH3CH2OH + CuO (to) Cõu 500 Trong cụng nghip, axeton c iu ch t A propan-1-ol B propan-2-ol C xiclopropan D cumen Cõu 501 S ng phõn xeton ng vi cụng thc phõn t C5H10O l A 6 B 4 C 5 D 3 Cõu 502 Axit cacboxylic no, mch h X cú cụng thc thc nghim (C3H4O3)n, vy cụng thc phõn t ca X l A C9H12O9 B C3H4O3 C C6H8O6 D C12H16O12 PHN LOI CC DNG CU HI TRONG THI HC 2 007 -2 008 -2 009- 2 010 Cõu 503 Oxi hoỏ 4,48 lớt... CnH2n-3CHO (n 2) D CnH2n(CHO)2 (n 0) PHN LOI CC DNG CU HI TRONG THI HC 2 007 -2 008 -2 009- 2 010 Cõu 520 Cho 2,9 gam mt anehit phn ng hon ton vi lng d AgNO3 (hoc Ag2O) trong dung dch NH3 thu c 21,6 gam Ag Cụng thc cu to thu gn ca anehit l A HCHO B CH2=CH-CHO C OHC-CHO D CH3CHO Cõu 521 Cho 6,6 gam mt anehit X n chc, mch h phn ng vi lng d AgNO3 (hoc Ag2O) trong dung dch NH3, un núng Lng Ag sinh ra cho phn ng ... axit HCl (d) thoỏt V lớt khớ H2 (ktc) Giỏ tr ca V l A 10 ,08 B 3,36 C 4,48 D 7,84 PHN LOI CC DNG CU HI TRONG THI HC 2 007 -2 008 -2 009- 2 010 Cõu 63 Khi cho 41,4 gam hn hp X gm Fe2O3, Cr2O3 v Al2O3... FeO, Fe3O4 v Fe2O3 (trong ú s mol FeO bng s mol Fe2O3), cn dựng va V lớt dung dch HCl 1M Giỏ tr ca V l PHN LOI CC DNG CU HI TRONG THI HC 2 007 -2 008 -2 009- 2 010 A 0,16 B 0,23 C 0 ,08 D 0,18 Cõu 84... CuO Cõu 102 iu ch c 78 gam Cr t Cr2O3 (d) bng phng phỏp nhit nhụm vi hiu sut ca phn ng l 90% thỡ lng bt nhụm cn dựng ti thiu l PHN LOI CC DNG CU HI TRONG THI HC 2 007 -2 008 -2 009- 2 010 A 45,0