glucozo ho[c fructozo-. ermanlozo-.[r]
(1)Hg vi t6n hgc sinh:
CAu 1: Ho-p ch6t hiLu ccr CeHl2 c6 cirri'a.vdng benzen, khi ph6n ring vdi Clo c6 chi6u s6ng tao m6t dAn xuAt CeHpCl Sti luqng cir6t thda mdn tinh chdt d6 Id
-f'Rl-ferruG EAr r-{Qe K!-lT',Ft Trwo'ng TIIPT Chuy6n KHTN
cira X ld
t\.2 chilt
4 HF < HCI < FIBr < HI.
C.IlBr < HCI< H-i <HF.
h 11,2lit 8.5,61it.
4 N4g B ie.
A.2 thht
rrach 'rrdng tli6a mdn cdc l.inh chAt cira X ld
, A.,2 ch1t 8.3 chit.
BAt KtFRfi TRA K|EN THLrC Moru HOn HQC LClp 12 _ 1011 Tltdi gian tdm bii: 90 phfit - Ngdy thi: 05-12-20tr0
Ma de thi: 103
{1- chdt
E III < IBr < iICl < !tF, : D I{F < FII < H.Br < I{Cl.
c.2,241it. 'b 4.4811t
C Cu b f
-.lJ " Lr\
E:3 ch6t: :, , f 1.i.4+ {i,; S chAt
A I chdt E.2chln. C 3 chAt D, 1ch6t
CAu 2: Eun Ir6ng h5n hop X g6m 0,003 mol mantozo vd 0,007 mol saccarozc vor tlung dich tlrSOr lodng, thu duq'c dung dich Y T'h0nr luolg du dung dich AgNO3A{H3 du vio Y Gia tiridt c6c phin rirrg xiy ra hoin*iodn Klr6i lrro-ng Ag tao ld
A.0.648 gam , B 1,404 gam C 2,808 garn D.4,:1.,t gan.
CAU 3: Cho c6c chAt: etanol (X), glirerol (Y); axit fo'nic (2, axit a>retic (T), axit oxali,: (.1-) T'hu tu tdng dAn lu.c
arii cira cric ch6t lA
A.X<Y<Z<T<L B.X<Y<T<Z<L C,X<Y <L<T<2, D.X< V <'r<L<2.
CSu 4: Dirng thu6c thrl: nac sau ddy dti phdn bi6t duo-c hai lq dung hai dung ciieh ri6ng bi€f ld glucozo vh frr-rctozo
bi mAt nh6n?
A AgT.lO3AtrH3 B Cu(OH)2/l'JaOH, t0 C, Br2lH2O D i{JlarO/KOH.
CAu 5: FIo-p chAt X ld axit no, cla chitc, nt4ch hir cd cdng thfic don ginir id {C*FI4O-)" 56 ch6t th6a man tinh chAt
8.3 cirAt {'} r;i'rti
CAu {' Ddy n}.o drr6i cl6y duc c sip x6p theo chiAu t6ng ddn ifnh khr} crla cAc axit halogenhidric?
C6u 7: Hoi : tan h5.n hgp g6m 0,03mol FeS2 vi a mol Cu2S bfurg lu_ong vua dri dur:g ,jich l-O{O3, thu du,o-o dung ^ A,
diclr chi g6m rnu6i sunfat vd VIft khf NO nh6t (dktc) 'Ihd tich klif NC tlr,r6t la, CAu 8: DIy ndo sau iiAy chria tAt cdL cAc chAt aiu aii ti nhi6i phAn?
A- NaOI-I, H2SiO3, CaCO3, NH4NO2, Cu(l{O3)2 ts }{aFiCO3, }.,Ja2CC-1 Ca(HCO3)2, CaCO3, N}I4NO3 C:NaHCO3, MgCO3, BaSOa, KNO3, (NFIr)zCOr, D";tiaHCO3, j'JIl4HCi-ij, Ca(HCO3)2, AgNO3, NI+4q1 Ciii 2' D€ nhAn cdc chdt ran ri6ng bi6t: NarO, AI:O:, y'il, Fe, C3C2, chi chr ding th6nt
4: H?A B dung dich HCl C dung rjich Irla.OI{ D dLingr ciich H:SO4
Cdu 10: Cho m6t oxit kiqr:lo4i h6atri2 t6c dung h€t v6i eiung dich ll2sCI4ib% (axit lc6ngJ rhu droc dung dic6 nu6i c6 n6ng ri6 14,45oh D6 li oxit cira icim ioqi
C*u l1: E6t cha1, hodn ioin 0,05 mol hidrocacbcn )i thuiio day d6ng ding crla benzeli, thu duo-c 10,08 lft khi
CO2 (dkic) Dun nrSlg'-X v6i dung dich KMnOa tao mu6i cfra axit teiephtalic Cho X tdc dpng v6i Br2 c6 Fe lAm x*c tAc tao s6 adn xirdt'1.'nobron: cfra X ld
A 1 chdt dl z
"ttAt, c 3 chdt F z+ ch6t.
Cdu 12: Hidrocacbcn X mpch hd lA chdt k-hi d diAu kign thudirg l(hi drit cli6y hoin 'Loirr X thu duo-c s6 mol CO2
; , ,: ! " - ^! r - ! ,
:-g61rbal6rrs6InolcuaX.S01rqpchAtth6am4ntinlrclrAtcrjaXld
Cffu 13: llcp chit X chria i nh6m andehit phdn tlr [.ho 0,52 gam X tdc d'gng hdt ir.ii AgNO3,4rlH3 du,tao 1,08 gar.n Ag lviat khfc cho 3,12 gam X thc clung irtit vO'i Na tao ra612 mI H, (dktc) SO luqng clrAt c6 c6u tao
Cf;u 14: I-ldn iiop 4 gSnt etylen vd axetilen_ t6c clqng vua h6t v6i 200 nl dung clicir AgNO3 1M NH3 M6t
l<har: ciing lu'ong h5n ho.'p X o tr-6n ldrn m6t miu vi'a h6t dung dich chria 0,3 rnol Br': PhAn tranr th6 tfch
"iru
u*riilen c6 hdn hop A la
' t1509/o
': B.2A% C.25% D" 33:J3%
C6u i5: I(h6i luo ng mu6i ciia axit ht'u co tiru duoc khi cho 14,8 ganttrpp ctrAt UoOC-CHO tdc dung v6i Iuo.ng
dLr dunq dich AgNO3/Nll3 ld
A:24,8 gam" , E.2I-,4 gam C" 18,2 gam D i8 garn
{lffu i6: }-lt-rir tan lx garn h6n irop g6m Fe vd Cu (trong d6 Fe chi6m 4A%khdi lu-orrg) bing dung dich I-{NO: thLr
cluoc ciung dich X vir 0,448iit NO duy irhAt dktc vi con l4i 0,65m gair kim loai C6 c4n dung dich X thu duoc lu'o-ng'rudi khan li
'Ar,5,4garn B 6,4gam C 1 l,2garn D 7,5gam.
CAu 17: Clro hdn hop A g6rn 0,1mol FeCO3; O,2niol Mg vd 0,iSrnol FeO t6c dpng v6i 0,5lit dung dicli HNOr
(lAy dLl l0% so v6i lu'olg pliAn flng) tliu duo'c 0,61 rnol h5n h-op B g6m NO, NO2 vir CO2 Ndng d6 mol cira r.lrirg dich l-ll.Jor da dirng lA
,'r.l,i2},i ii:.3.652i\4
C',4 chlt.
c.2,5521vi.
t
D chtt
D.2,952M.
Kidm n'a ki€n lhuc ldp l2-tin I ndm 20I0
(2)CAri 18: MQt h5n ho p bgt g6m hai kiin loai Mg vd Al dr-ro c chia thAnh hai phAn bing nhau
Plrin I : Cho tAc dung htit r'6i HCI dii tliu duo-c 3,36 lit H2 (dktc)
PhAn 2: Hda tan h'Ct trone !INO3 lodng du thu duo'c V Ut (dktc) mQt chAt khi kh6ng mdu, hoa nAu trong kh6ng
khi Gi6 tri cfra V lA '1
:
Ar2,241ft 8.3,361it c.4,4rlit D.5,6lit.
CAu 19: HAp thu hodn todn 6,12lit khi CO2 6 dktc vAo I lit dung dlch h5n hqp NaOH 0,1M vd Ba(OH)z 0,15M thu du'o c kh6i lu'q'ng k0t trla ld
A.9,85 garn B'19,7 gam C 29,55 gam D.59,1 gam
CAu 20: Cho m6t h5n hop Na vd K tAc dgng ntit vO'i nu6'c du thu dugc 2,0 lit (do 6 00C; 1,i2 atrn) vd dLrng dlch D Tli6 tfch dung dlch HCl 0,5M cAn d.}trung hda lt.j:t tlZ dung dich D ld & i,,il
Vl-Ay200 rnl B 100 ml C.400 ml D 1000 ml.
Cnuii: Eun n61g h5n hqp X g6m Aianin vi Glixin tao ra h5n ho.p Y g6m c6c dipeptit m4ch h6' 56 lu'o-ng dipeptit c6 th€ c6 hdn ho p Y ld
.d ch6t 8.2 chdt c 3 cli6t D-,4 chat
Cdu22: Dung dlch lvsin n6ng dQ 0,lM c6 pH
A bing1 B nh6 hon 7 C r6n hon 7 D c6 th6 bing ? hoic nh6 hon
.CAu 23: ChIa mQt h5n hQ'p X gdm nhurrg lu'o ng bdng nhiu vA s6 mol cria axit acrylic vd andehit acrylic thdnh ohAn bing 1hau PhAl I phdn iLng htSt v6'i NaHCOi t4o ra l,72lit khi (dktc) Phdn 2 cho phdn iing het voi
Cu(9H) khi dun n6ng 56 mol Cu(OH)2 dI tham gia phan ring ld
A 0,05 mol , B 0,1 mol {p O,1ZS mol D' 0,2 rnol
Cdu 24: itqp chAt hu'u coli khi ch6y chi tao ra CO2 oa"HrO c6 sr5 mol bing nhau Cho I ,4 gam X t6c dpng hi5t
v6'i NaHCO: tqo ra2,24lit (dktcj 56 ch6t th6a man tinir chAt cria X ld
, i
.g- 1 chl,t 8.2 chit C 3 chat D cl,At
Ceu f,-S.: Cho3,24 gam ho.p ch6tX t6c dpng ht5tv6'i AgNOTA{H: t1on2,16 gam Ag Vay X c6 ttrA la
A*.saccarozo B glucozo ho[c
fructozo-ermanlozo- saccarozcl, glucozo, fructozo hoac rnantozo
Cku z6tT6ng.s6 hat co ban trong nguydn tir nguy6n t6 X ie 24hqt St trat mang diQn gdp hai lAn s6 hat kh6ng
mang diQn OIAu ttting dinh nAo tuu aay vd nguy6n t6 X la kh6ng dfng?
A X tan rdt it trong nu6'c
B X ld chdt khi 6'diAu ki€n thudng
C, Li0n t<6t noa hgc phdn tu X2 ld li€n k6t cQng ho6 tri kh6ng c6 cr,r'c D irong tilt c6 circ ho p chAt X c6 s6 oxi ho6 ld -2
C.Au )'!: Cho"cAc chdt sau:-NF{rHCOs, NaHSO,r, Ba(HSO3)2, }'laHzPO+, SiOz, Si Mg, fuIgO, AuS S6 chAt phan ri'ng drro-c v6'i dung dlch HCI ln
CAu 28: Cho cAc phLLorrg trinh phdn t'ng sau: a Fe* AgNO316uy +
: C:a\T^a\LI-Unll
U Lil ' 114vil ' rl?v -
'
e CHTCHO + fVinOq + HzSOa+
g Ca(HCO3), -L
A axrt axetlc
C glicocol,
' c.7 D.8.
b FeCO3 + HNOr -+ d etilen glicol +
Cu(OH)2-f FeS - HC\aa", nong) +
h SiOz + NaOH -n
A.5 8.6.
DEy girrn cdc pirin rlng dAu thuQc io4i phin ring oxi ho6 -_ktrri ld
-
A.u,b,c,h Bga,b,c,e C.a,c,d,g D'b,c,d,f'
Cdu 29: C6 binh di6n ph6n mi" n6i ti6p nhau: binh I chira dung dich CuC12, binh chria dung
1i"1.*Y9::
Ilri d anot cria biph i tlio6t ra2L,4lit m6r chAt nh6t thi 6' anot cia binh 2 thodt bao nlii6u tit khi? (Bi6t
c6c tlrA ticli do c'cing diAu kiOn)
Ar I 1,2 lit 8.22,4 lit c.33,6lit D 44,8 lit.
Cffu 3'U: Tr6n c6c c{p dung dich: NaCl v6'i AgNQ(1); Fe(NO:)z v6'i FICI (2); FeO{O:)2 v6'i AgNO3 (3) vA NaHSOT voi HCI (a) tbi s6 trudng ho.p c6 ph6n ri'ng oxi h4a - khri xAy ld
A.4 E 3 c.Z D 1
Ciu 3i: irong ,5 c6c amin chri'a vong benzen c6 c6ng'rnuc phAn tu'CrHqN thi sO chAt thuQc loai amin b4c ld A 1 clrAt ts.2 chdt C i chilt ll' t ctrAt'
Ca" :jt gOi ,nay noan todn 0,1 mol mgt ancol X thu drLE-c 6,12Iit CO2 (dktc) oui,2 ga* H2O 55 lu'ong ancoi
tlr6a rndn tinh chAt cira X lA
t z ci,fu I r B,'3 ch6t c 4 chfu tr)e5 ch6t'
CAu 33: H-irlroeaebon X ta cnaithi, kh6ng ldm m6t utdr-r dung dich KMnO.r toang KhiAOt cnay hodfi ig?in X, ttiu' du,o-c s6 i.,.tot grO glp ba lAn st5 mol X S61uo ng chAt th6a man c6c tinh ch6t crja X*ie
, i. A 1 chAt B;n2 chht C chdt D chAt
CA"3;r.t6i"naytloantoinU,t rnol ch6thfrucoI,,!qduo.ckhiCO:vdhoiuu6c,trongd6,th6.tichCO2birrg
4,48 lit(tlktc) Bi6r X tAc dpng v6'i Na tao s6 mol H2 bing s6 rnol X dd phin ring Vay X co th6 iA
F etanoi
0 axit oxalic liodc etylenglicol
-.*e ,,,.Ki.pm tra,lcpt Jhirc lltp t 2-tin ,{npm 2010
(3)cau 35: Ch6t nAo qau clay dirng dii kht'nh6m *cooH thanrr
-cH20H? A NaBHa B HrA{i, t0
- ,C agUO.nVUr D.; LiAlHa.
' Ciu 16: prr6n ri'g
"i? 1."_,:g c6c phan ir'g sau kh6ng th6 xai?i' -
' *-^ "-) 'T for + dung dich Hzs
F do, + dung dfch NaoH.
e so2 + dung dich nu6.c cto 6j io; + iung dich BaCIr
c6'.u 3.7: Nu'g hdn lrq'p A gom x rnoi Fe va o,J.syglc" ti*g'u,i,rg-khi m6t thdi gian, ttiu du.o-c 63,2g h5n hop :H'Jil B' Hda tarr hdt h5n ho-p B bing dung dich Hrso4 de; "i"g; a" thu duoc 6-,72 litkhi so2 6 dkrc Gi6 tri
A 0,4mol
, ^'
' B 0,5-ol
c 0,6mol Dr 0,7nol.
CAU 38: Hod tan 3,69 h6n ho.p g6m Fe3o4 va au
r?n-*-dr";;i;i;Hllau, khudy d€u d6 phnn f'g x6y hoin
toilr, rhu itu.o-c dung dich X va chdt r6n y Hodra1f,Lti."? a'*U.ai.i, flwO, tfiirhu
duoc 448mtkhi,NO2 (s6n pham.fcln duv nh6t) 6'dktc co_can?inE"dlch X thu HG r.'n,lg,n"ia;
khan rd ",,]s r,
A.$,l6gam
, l S.it]gam C.3,8igam D.8,4tsarn.
Ciu .:9: Cho hdn ho.p X g6m at vj pJtac dung vo.i arng oi"i c"uirl
Khu6y aa" ria,'rliqplio l.ou, thu du.o-c dung
' dich Y vd ch6t rin z Th€mvao Y m6t luong dung dich-NaoH Ioanl, au, ,'"u a; i;; k5]!6;
tao rhanh nung rrons
kh6ng khf 6' nhi€t d6 cao thu dugc ch6t rin gd* rr'ui
"*ii ti* l"ii c6c phin ring xiy ra hod' todn Hai oxit kirn
loai d6 lA
A AI2O3, Fer9r.,
^ B:_{t:91ffi.- e,;Fe2O3, Cuo D CuO, FeO
' cdu 40r Hda tan h5n ho.p g6m NaHCo3, Naclvd Nazs5r uao noo" dugc dung dich
X rncnr ursoo lodng vao
dung Iuong dich bing X 0,9 dtln khj.lchong lAn tltii th6y khr thorit nta.thi aing]?], l-uc dung dich chfi,a luo.ng rnu6i v6.i kh6i
Iuing
!'iu frO" irqp mu6i U"n qara vg1, V" UlrAilu,o ng criiwuHCO3 trong h6n hop dAu Id 4.84%
^8:?S:96:/, c sq,az%, D 80% i
' ceu 41: Ho- p shf1 x.(31!1a c, H, ci; iu
y l BZ; itruge loai au
"n,i khi phan il.ug v6.i NaoH tao ra,muiii va
ancol 56 lu,o.-ng hop ch6t th6a rnan tinn chdicrla X ld
A.2 chdt
^.t, .8 3.-ch6t c 4 chdt n j chdt
c6'u 42: cho cdc chAt: Phenpl, anilin, axit acrylic, uenzanaerrii, glu"oro, fiuotozu, mantozr], sacoarozo 56 ch6t phAn ri'ng duo-c v6i nu6c bro'im ld
A 8 ch6t 8.1 chdt
Cr ch6t D ch6t
Cffu 43: Trong s6 c6c chat: axetilen, vinylaxetilen, benzen thi hdrn ruo:rg yo cacbott
A axetilen IA i6n nh6t
*,1*;;;;;;;l;ffi?;: 3.ri3l?ll1'iffilin::H#"
CAu a4: cho cdc chAt:-metyl metacrylat, stiren, metyldtibnoxii,'cacrolactam, helametvlendiarnin, axit adipic s6
ch6t cd tham.gia phin urrg ir.r"g-irE,r't"- ' -"'
A'2 chat 'd g chAt c.4 chdt
D 6 ch6t
cau 45: o I 000c, rn6t bi'h kin dung tich khdng g91 cgl-1ffi2 vi 16mol y, J ap erat ld 400atrn Dun n6'g
binh d6n 2000c va gifr'nguyen nhiEt d6 d6; khiphia ri"g ait ae" fi.ang th6i cdn-bing rhi
hi6u su6t cria phan
6ngld.2;yu Ap su6t ci'a uintr so-u khiphin mg Jir-"ai-iire'6.";0pJra
A.360atm B 456,5a1m C.574atm
D.2g3,9atm.
cao.19: cho 1,3659 mOt kim r,ai kidm X tan hoan todn vdo nu6'c rhu duo'c m6t dung dich c6 kh6i iucrng
l6n hon so ,16i khoi luong nudc d6 dtrng ld i,33 gam kim loai X
ld
A.Cs b, Nu, ., ': e'r D Rbj
{'6u 47: Tions c6c d"ledi.ql t+u;9a(QH)z,.Bacli;'Brz, Hzs; KMnoa sli a*,*iiii""'o trre
dtng d6 plian bi6t. ' -
duoc COI vi SO, ta
A I 8.2 c.,,lt
D.5. cau48:Ei6nphdndungdichcusoadu,dipn-cg'ctroTrongthoigian
1930gidy,thudu,o-c l,92gamcu6.catot.
Cu'd'ng d6 dong di6n qu6 trinh diQn ph6n IA
A,3,0 A 8.4,5 A c 1,5 A
D 6,0 A.
ciu 49: Hoa tan hoan todn.15,9 gam h5n hqp
go.m : lim lo4r Al, Mg vi cu ui"glung ai"r, ril{o, thu duoc 6,72 lit (dktc; No (rd s6n pham khu nrrat; va aung dich x sa; p;;n ;";-d6t?;;,"r? 0,,"" thu du,oc rd
A," 71,7 gam B.?7,i gam
t .g: 11,7 gam _ D 53,1 gam
cf;u 50r A NH3(du) FI6n ho.p rin X g6m a! E";Hcr1au1 rerorla cu c6 s6 mof J.ing nhiu H6n hgp X tan hodn todl rrong dung dich b fi"oH (d;i D AgNo3 (du)
.HCr
:1"=,T;,ir]l:i: -iv.,!rr-rr,r{.i-56;Cu:64;Zn:65,Rb:85;51=gg;Ag:-l0g;Cs:i33;Ba=13i;Nn:O,OZ.tffl, 'y7)'n: c tz.N - ra;o:1u'Na:23; Mg:24; Ar=27; s:32; cr:35,5; r(:3e;
(4)f:
TRTJCvNG DAr HgC KHTN
Trddng THPT ChuY€n KHTN
|
-l
:
DAp AN BAt KIEM TRA 141EN THI PC MflN HoA Hpc LCIP 12-1011
Ngdy thi: 5-12-2010 Ma dC thi: 103
Cdu 1:A. CAu 6: A
CAu 11: B
CAu 16: A.
Cdu 21:D. CAu 26: D
CAu 31: D
CAu 36: D
CAu 4l: D CAU 46: C Ma da thi: 125
, ,' CAU i: B
'", cau6:8 '
CAu i 1: C Ciu 16: D CAU 21: C
Ct,u26: C CAU 31: A.
CAu 36: A.
Cdu 4l: B CAU 46: C
Ma dC thi:147 CAu 1: C Cau 6: B CAU 1l: A.
CAu 16: C C6.u21: A.
CAu 26: C Cdu 31: D
: CAu36:D
' ,.,,f,dU41:.C., "
CAU 46: D Ma dA thi: 169
CAu l: A
CAu 6:D. CAU 11: B CAU 16: A. Cdu 21: B CAU 26: B Ciu 3 i: D
Cdu 36: D
uau 4l: L
Cdu 46: C
eau 2: D.
C6u 7: D CAu 12: C
C6u 17: B
C6'u22: C
CduLl: A.
CAU 32: D.
Qdu37:D.
bau tzt c. Cdu4l: C
CAU 2: A. C:dul: C
Ciu 12: C CAU 17: D. Cdu22: A.
Cdu27: A.
Cdu32: A. Cdu37: A.
Cdu 42: A. Cdu 47: C
CduZ: A.
6:au 7: c.
CAu 12: A.
Cdu 17:A. Cdu22:D. Cdt27: C
C6u 32:D.
Cdu 3710.
:cei'42 c:'
Cdu 47:8.
CAu 2: D.
CAu 7: B CAu 12: D CAu i7:D.
Cdu22: A.
Cdu2l: C
C6u 32: A. Cdu37: A.
Cdu 42:8.
C6,t 4'7: C
CAu 3: B:
CAu 8: D.
Cdu 13: C CAu 18: A.
Cdu23: C
CAu28: B
Cdu 33: B
C6u 38: A.
CAu43: D
Cdu 48: A,
CAu 3: A.
Cdu 8:.D
CAu 13:A.
CAU 18: B.
Cdu 23: B CAU 28: C CAu 33: B
Cdu 38: C Cdu 43: D
C6u 48: B
Cdu 3: D.
CAu 8: D.
Cdu 13: B.
CAU 18: B
C6'u23:8. CAU 28: A.
CAu 33: A.
CAu 38: D
Ciu 43: A.
CAu 48: C
CAu 3: C CAu 8: D
Cdu 13: D
Cdu 18: B UAU /J: A.
Cdu 28: C
CAU 33: A.
Cdu 38: C CAu 43: C
CAU 48: B
C?'u4: C CAu 9: A.
Cdu 14: A. CAU 19: B
Cdu24: A.
CAU 29; A. Cdu 34: D CAU 39: C Cdu 44: C CAu 49: A.
CAu 4: C Cdu 9: C
Cdu 14: D.
CAU 19: D. Cda24: A. CA'u29: C CAU 34: B.
Cdu 39: C Ciu 44: D.
CAU 49: D.
Cdu 4: B.
CAu 9: A;
Cdu 14: A. CAU 19: A. Ciiu24: C
Cdu29: A.
Cdu 34: B.
C6u 39; C
CAu'44: B.
Cdu 49: A.
CAu 4: C
Cdu 9: D. CAu i4: D.
Cdu 19: D
Cdu24: C Cdu 29: D.
CAU 34: A. Cdu 39: B
C6'u44:D.
C?'u49: A.
Cdu 5: C
Cdu 10: B
CXu 15: A.
CAu 20: A.
CAU 25: C CAu 30: C Cdu 35: D CAU 40: C Cdu 45: B
CAu 50: B
Cdu 5:C.
C6u i0: D Cdu 15:D.
CAU 20:D. CAU 25: D Cd.u 30: D
Cdu 35: A.
CAU 40: B.
Cdu 45: A.
Cdu 50: A.
CAu 5: A.
CAu 10: D Cdu 15:8. CAu 20: C Cdu 25: D CAU 30: C CAU 35: C Cdu 40: p. Cdu 45:-D
C6u 50: C
CAU 5:C. Cdu 10: C
Cdu 15:A. Cdu 20: C CAu 25: A
Cdu 30: A.
CAu 35: C CAU 40: B CAu 45; A.
Cdu 50: A.
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