Cau 3. Co bao nhieu dong phan c6 cong thiJc phan tuT la CsHioO tham gia phan iJng
tranggiTdng? .'r-'^"/' ' , r ' ' ' < / ; : v i . u j ^ju,-..;.:;
Ạ 3 B. 4 , '. 5 D. 6
C§u 4. Chuyen hoa hoan toan 4,2 gam andehit A mach hd bkng AgNOs/NHs thi ihu difdc hon hdp muoi B. Neu cho luTdng Ag tao thanh tac dung vdi HNO3 tao n; 3.792 lit khi NO2 (27"C, 740mmHg). T i khoi cua A so vdi N2 nho hdn 4. Vay A
CO the la: /. ,
Ạ C H 3 C H O B . H C H O c,
C. H O C - C H O D . C H 2 = C H - C H 0 Cau 5. Cong thiJc đn gian nhát cua mot andehit no, mach hd X la C3H5Ọ Vay Cau 5. Cong thiJc đn gian nhát cua mot andehit no, mach hd X la C3H5Ọ Vay
CTCT thu g o n c u a X m :
Ạ C4H|o(CHO)2 B.C3H6(CHO)2 C. C4H8(CHO)2 D. C 2 H 4 C H O CSu 6. Dun ndng hdp chat hiJu cd X vdi đ AgN03/NH3 diT, thu diTdc san pham Ỵ
Chp Y phan iJng vdi NaOH hoac HCl deu thu difdc khi v6 cd. X c6 the la:
Ạ C H 3 C O O N H 4 B. C H 3 C H O C. HCHO D . C 2 H 5 C H O
Cau 7. Dot chay hoan tôn m (gam) hon hdp gom 2 andehit no, đn chiJc thu d i f d c
0,36 gam H2Ọ M a t khac, neu thifc hien phan iJng hidro hoa m (gam) hon h d p tren rdi dem dot chay thi thu difdc a (gam) khi CO2. Vay a c6 gia tri la:
Ạ 0,44 gam B. 0,88 gam C. 0,66 gam D. 1,344 gam
c a u 8. Dot chay hoan toan hon hdp gom 3 andehit no, đn chiJc thu diTdc 0,54 gam H2Ọ Neu hidro hoa hon hdp andehit tren vdi hi^u suat 80%, sau đ dót chay
toan bp san pham thi thu difdc m (gam) CO2. Vay m cd gia tri la:
Ạ 0,88 gam B. 1,32 gam C. 0,22 gam D. 1,056 gam c a u 9. Cho 5,6 gam X tac dung het vdi dung dich AgN03/NH3 dif tao ra 21,6 gam
Ag. Vay X la:
Ạ C H 3 C H O B.CH2(CHO)2 C. H O C - C H O D. C H 2 = C H - C H 0 Cau 10. Cho chuoi phan (Jng sau: Cau 10. Cho chuoi phan (Jng sau:
C6H5CH=CH2 _ ± i ^ 2 0 ^ H ^ ^ _ ± C u O _ ^ Y —?^^^^±9}L^ Z v , ^
V a y Z l ^ :
K i i A T g f i v n y r
Ạ CfiHsCO-CHzBr B. m -BrC6H4 - C H 2 C H , >• ,
C. C 6 H 5- C H B r - C H 2 B r . ^ D. CsHsCHBr-CHzOH
CSu 11. Dot chay hoan toan 5,1 gam hSn hdp gom 2 ankanal c d so nguyen tu^
cacbon lien tiép. Dan toan bp san pham chay qua dung dich CăOH)2 dif thu
difdc 25 gam ket tua tao thanh. Vay ten cua ankanal la:
Ạ Metanal va etanal B. Etanal va propanal
C. Propanal va butanal v*i( '>?tivi,i«! »» D. Propanal va 2-metylpropanal
c a u 12. Oxi hda 4,6 gam mgt ankanol B bang CuO thi sau phan iJng thay khoi
W d n g C u O g i a m l,6gam. V a y B M : ,
A . C H 3 O H B. C 2 H 5 O H C. C 2 H 5 C H 2 O H D . C 3 H 5 O H
c a u 13. Cho 140cm^ (do d dieu kien chuan) hdn hdp gom axetilen va etan l o i qua
binh difng dung dich HgS04 d 80"C. Toan bo cac chat khi va hdi qua khoi binh
duTdc dan vao binh chuTa AgN03/NH3 duf thu du^dc 0,54 gam Ag. Vay thanh phan %
cua axetilen trong hon hdp ban dau la: 1 i i * 1 {} > I ' U / i / J i / ! . Ạ50% B . 6 0 % i i C 40% D 30%
c a u 14. Mot andehit X mach hd cd cong thiJc nguydn la (C2H30)„.V|y cong thiJc
phan tuTcuaX la: 1 - ; /
Ạ C2H3O B. C4H6O2 C. C3H9O3 D. C4H,o02
c a u 15. Hdp chat hffu cd A: CxH802. De A la andehit no, 2 ehiJc mach hd thi:
A . x = 2 B . x = 3 ^.^.n'? r X . x = 4 )i/k:irD-X = 5
c a u 16. MQt andehit X cd mach hd khong phan nhanh cd cong thiJc nguyen la
(C3H60)„. Vay s o n h d m c h i J c - C H O c u a X l a : ,„ f.)f J : ' ( . <
Ạ 1 B. 2 C. 3 D. 4
c a u 17. Oxi hda hoan toan 4,4 gam andehit A bkng AgN03/NH3 diT thu diTdc 7,7 gam muoi hiJu cd. Vay A la:
Ạ HCHO B. CH3CHO C. C2H5CHO D. (CH0)2
c a u 18. Dót chdy hoan toan 2,9 gam andehit A thu dUdc 6,6 gam CO2 va 2,7 gam
ni^c. Vay A c d t h e la: "\t^!:Z:f'^ ^ M • " • •
Ạ HCHO vV < B.CH3CHO C.C2H5CHO D. ( C H 0 ) 2
c a u 19. Oxi hda hôn toan 1 andehit mach hd X thu difdc axit hihi cd Ỵ Biet ti khoi
cua X so vdi Y la 0,7435. Vay X la:
Ạ H C H O B . C H 3 C H O f , f ; C . C H 3 C H 2 C H O D. C H 3 C H 2 C H 2 C H O
c a u 20. Tir hidrocacbon A cd the dieu che andehit malonic (malonandehit) CH2(CHO)2b!ing3phaniJng. V l i y X c d t e n m : - I . a v ' ^
Ạ Propen , • B. But-l-en (buten-1) J i