D. axit axetic va axit propanoic '
jCh oY tac dung het vdi luong du dung dich AgNO trong NH3 dun nong, sinh ra m gam A g Gia tr ciia m la:
Ạ 51,84 B. 32,40 C. 58,32 D. 58,82
Cdu 70: Cho cac chat: CH3CH2OH, C4H10, CH3OH CH3CHO, C2H4a2, CH,CH=CH,,
C6H3CH2CH2CH3, C2H2, CH3COOC2H5.
S6' chat bang mot phan ling true tiep tao ra axit axetic la:
A . 6 B.7 C.4 D . 5
Cdu 71: Thuoc thir cdn dung de phan biet cac dung dich rieng biet mát nhan: glucoza, glixerol, alanylglyxylvalin, andehit axetic, ancol etylic la:
A . A g N O y d u n g dich NH3 B. Na
C. nuorc brom D . Cu(OH)2/dung djch N a O H .
Cdu 72: Hop chát chua dong thoi lien ket cong hoa trj va lien ket ion la:
A . SO2CI2 B. NH4NO3 C. BaCl2 D . CH3COOH
Cdu 73: Thirc hien phan ling nhiSt nhom giCfa A l va C r , © , trong di6u ki6n khong c6 khong k h i , sau phan ung hoan toan thu duoc h6n hop X c6 khoi lucng 43,9 gam. Chia X lam 2 phdn bang nhaụ Cho phan 1 tac dung v6i dung dich N a O H (dir) thu dugc 1,68 lit k h i (dktc). Vhin 2 phan ung vua du vdi V l i t dung dich H C l I M (loang, nong). Gia trj ciia V la:
A . 0,65 B. 1,05 C. 1,15 D . 1,00
Cdu 74: Tripeptit M va tetrapeptit Q deu dugc tao ra tir m6t amino axit X mach \\b,
phan t u CO m6t nhom - N H . . Phan tram kh6'i lugng ciia N trong X la 18,667%.
c r y 1 iwHN MrvuwH Khdiigyiet
Thuy phan khong hoan toan m gam hon hop M , Q (ti le m o l 1:1) trong moi trucrtig axit thu dirge 0,945 gam M ; 4,62 gam dipeptit va 3,75 gam X . Gia trj ciaa M la: '
A . 9,315 B. 5,580 C. 58,725 D . 8,389
Cdu 75: Trong dung djch X c6: 0,02 mol Ca""; 0,05 m o l Mg--^; 0,02 mol
HCO3 ; C r . Trong dung djch Y c6: 0,12 mol OH"; 0,04 mol CI"; K*. Cho X vao Y , sau cac phan ung hoan toan khdi lugng ket tiia thu dugc Ion nha't la:
A . 2,0 gam B. 4,2 gam C. 4,9 gam D . 6,2 gam
Cdu 76: Cho 0,448 l i t khi N H , (dktc) di qua 6'ng sijr dung 16 gam CuO nung nong, sau khi phan ling xay ra hoan toan thu dugc chat ran X . Cho X vao dung djch
HNO3 dac, nong (du) thu dugc V 1ft khi (dktc). Gia trj ciia V la: A . 8,960 B. 0,448 C. 0,672 D . 1,344
Cdu 77: Cac chát d^u bj thuy phan trong dung djch N a O H loang, nong la: A . n i l o n - o , protein, n i l o n - 7 , anlyl clorua, vinyl axetat.
; B. vinyl clorua, glyxylalamin, poli(etylen - terephtalat), poli(vinyl axetat), nilon-6,6. C. n i l o n - 6 , tinh bgt, saccarozo, tovisco, anlyl clorua, poliacrilonitrin
D . mantoza, protein, poli(etylen-terephtalat), poli(vinyl axetat), tinh bgt.'
Cdu 78: H6n hgp M g6n anken X va hai amin no, don chiic, mach ho Y , Z (My <
Mz). Dot chay hoan toan m6t lugng M cin diing 21 l i t O , sinh ra 11,2 l i t CO, (cac {hị tich k h i deu do b dktc). Cong thiic ciia Y la:
A . C2H5NH2 B. CH3NH2
C. CH3CH2NHCH3 D . CH3CH2CH2NH2 -
Cdu 79: H 6 n hgp X gom hai este don chúc la dong phan ciia nhaụ D un nong m gam X vori 300 m l dung djch N a O H I M , ket thuc phan ung thu dugc dung djch Y va ( m - 8 , 4 ) gam h6n hgp hoi gom hai andehit no, don chiic, dong dang ke tiep
CO t i khoi hoi so vai H2 la 26,2. C6 can dung djch Y thu dugc (m - 1,1) gam chat ran. C6ng thiic ciia hai este la: ' ' ' * A . C2H5COOCH - C H va CH3COOCH = CHCH3
B. H C O O C H = CHCH3 va CH3COOCH = C H j C. H C O O C ( C H 3 ) = CH2 va H C O O C H = CHCH3 D . CH3COOCH = CHCH3 va CH3COOC(CH3) = CH2
Cdu 80: Thuc hi6n cac thi nghiem sau: , •. ^ (1) Sue khi SỌ vao dung djch K . C r . O trong H2SO4 loang
(2) Sue khi SO3 vao dung djch HNỌ, dac
(3) Sue k h i SO3 vao dung djch Că0H)2 f . "
Fhdn loai vdphtfcfiigpluip gkii nhanh Bl' Hoa hoc 12 -C u Thanh loan
(5) Cho SiOj vao dung djch HF (6) Cho CrO, vao dung dich NaOH.
So thi nghiem c6 phan iJng oxi hoa - khir xay ra la: ' '
Ạ 4 B. 6 C. 5 D. 3 ' '
Cdu 81: Co cac dung djch rieng biet kh6ng dan nhan: N H 4 C I , A I C I 3 , FeCl,,
Na2S04, (NH4)2 SO4, NaCl. Thuoc thu can thiet d^ nhan bidt tat ca cac dung djch tr6n la dung dich:
; Ạ Bad, B. NaHS04 C. BaCOH), D. NaOH
Cdu 82: Cho so do chuyen hoa:
C , H , - C . CH X Y - ^ 2 ^ ^ ^ z
Trong do X, Y , Z đu la san ph^m chinh. Cong thiic cua Z la: od§,8
Ạ C 6 H 5 C H 2 C H 2 O H B. C 6 H 5 C O C H 3
C. C 6 H 3 C H( O H) C H 2 0 H D. C ( , H , C H( 0H ) C H ,
Cdu 83: Cho X tac dung v6i dung djch chiJa 0,1 mol H 2 S O 4 thu duoc 0,15 mol SO,. Chat X la:
Ạ Na^SOj B. Cu C. Fe D. S
Cdu 84: H6n hop X gom C„H2„_,CHO,C„H2n_,COOH,C„H2„_,CH20H (deu
, Y mach ho, n e N*). Cho 2,8 gam X phan urng vira du 8,8 gam brom trong nuoc. Mat khac, cho toan bo lugng X tren phan ling \6\g du dung dich AgNO, trong N H 3 , ket thuc phan ling thu dugc 2,16 gam Ag. Phdn tram khd'i luong CLI;I
C„H2„-|CHO trong X la:
Ạ 22,22% B. 26,63% C. 20,00% D. 16,42%
Cdu 85: Hoa tan het m gam h6n hofp FeS, va CujS trong dung djch HNO,, sau cac phcin iJng hoan toan thu dugc dung dich X chi c6 2 chat tan, vdfi tong khdi lugng cac chat tan la 72 gam. Gia tri cua m la:
Ạ 60 B.40 C.20 D. 80
Cdu 86: Cho m gam h6n hgp X gom axit glutamic va valin tac dung \6i dung dich HCl (du), sau phan dng hoan toan lam bay hoi cin than dung dich, thu dugc (m+9,125) gam muoi khan. Neu cho m gam X tac dung vai dung dich NaOH (du), ket thiic phan ling tao ra (m+7,7) gam mu6'ị Gia tri ciia m la:
Ạ 33,75 ' * B. 26,40 C. 39,60 D. 32,25
Cdu 87: Cho cac chat: Al,NaHOO„ NH4NO3, <:r{m\ B a a 2 , Na2HP03, C H 2 - COOH,
H2N-CH3OOQNH4, C2H5NH3a, aNH3CH2000H, CH3000C,H5, CH2 = C H C 0 O N a , H 2 N C H 2 C O O N a . S6' chat luong tinh theo thuyet Bron-stdt la:
Ạ 4 B. 5 C. 6 D. 7
Cdu 88: Cho m gam h6n hgp M gom hai axit X, Y (Y nhilu hon X mot nhom -COOH) phan ihig het v6i dung djch NaOH tao ra (m + 8,8) gam mudị Neu cho
Cty TNHH \rrV D\ Kh.nir \
toan bo lugng M tren tac dung \6\g du dung djch AgNO, trong NH,, sau
phan ung ket thiic thu dugc 43,2 gam Ag va 13,8 gam mudi amoni ciia axit huu
CỌ Cong thurc ciia Y va gia trj ciia m Idn lucrt la:
Ạ H O C C- C H 2 - COOH va 19,6 B. H O C C - C O O H va 18,2 C. HOCO - COOH va 27,2 D. HOCO - C H 2 - COOH va 30,0
Cdu 89: Ddt chay hoan toan 0,05 mol hdn hgp X gom hai andehit no, mach ho sinh ra 1,792 lit khi C O 2 (dktc). Mat khac, toan bg lugng X tr6n phan ung vira dii vdi 0,08 mol H2 (xuc tac Ni, t°). Cong thiJc ciia hai andehit trong X la:
Ạ HCHO va C H 3 C H O B. HCHO va H C O - C H O
C. HCHO va H C O- C H 2 - CHO D. C H 3 C H O va H C O - C H O
Cdu 90: Nhiet phan hoan toan 29,6 gam mot mudi natri kim loai, sau phan ung thu dugc 8 gam oxit kim loaị Cdng thiic cua mudi nitrat la:
Ạ Cu(N03)2 B. Fe(N03)2 C. Pb(N03)2 D. M g ( N 0 3)2
Cdu 91: Hgp chat hiJu co mach hof X c6 cdng thiic phan tijr C 4 H 6 O . Chat X khong tac dung vdri Na va NaOH nhung tham gia phan ling trang bac. Sd chat X phii hgp dieu kian tren (khdng d^ đng phan hinh hgc) la:
Ạ 8 B. 10 C.6 D. 7
Cdu 92: Trdn m gam Ba va 8,1 gam bdt kim loai A l , rdi cho vao lugng HjO (du), sau phan ling hoan toan c6 2,7 gam chat rSn khdng tan. Khi trdn 2m gam Ba va
§ 8,1 gam A l rdi cho vao HjO (du), sau phan ling hoan toan thu dugc V lit khi H^ . Gia tri cua V la:
Ạ 11,20 B. 14,56 C. 17,92 D. 15,68
Cdu 93: Phat bieu dung la: ' '
Ạ Luu huynh va photpho deu bdc chay khi tiep xuc CrOj > i Q
B. Ure C O cdng thiic hoa hgc (NH4),C0, /
flk C. Fe chay trong CI2 tao ra khdi C O mau xanh luc. ^ D. Ion Cr^' cd ca'u hinh electron la [Ar]3d\
Cdu 94: Hdn hgp M gom ancol no, don chiic, mach hd X va ancol khdng no, da chiic, mach hd Y (Y chiia 1 lien k6't 71 trong phan tu va X, Y cd ciing sd mol). Ddt chay hoan toan mot lugng M cdn dung V lit O, (dktc) sinh ra 2,24 lit C O 2
(dktc) va 2,16 gam H^Ọ Cdng thiic ciia Y va gia trj ciia V l^n lugt la: • Ạ C4H6(OH)2 va 3,584 B. C3H4(OH)2 va 3,584