D C2H500CCH2CH2CH(NH2)COOC2H5
Ddp dn A
3.12. Dot chay hoan toan m gam mot amin don chiic thu dugc 0,2 mol CO2 va
0,35 mol H2O. Cong thiic phan tir ciia amin la
A. C4H7N B. C2H7N C. C4H14N D. C2H5N
Ddp dn B
3.13. De tong hgp cac protein tir cac amino axit, ngudfi ta diing phan img:
A. Triing hgp B. Trimg ngung C. Tnmg boa D. Este boa
Ddp dn B
3.14. Day gom cac chat deu cd kha nang lam doi mau qui tim la
A. C6H5OH, C2H5NH2 ,CH3C00H B. CH3NH2, C2H5NH2, CH3COOH B. CH3NH2, C2H5NH2, CH3COOH C. C6H5NH2 va CH3NH2, C2H5NH2 D. (C6H5)2NH, (CH3)2NH, NH2CH2COOH
Ddp dn B
3.15. Hgp chat hiru co A chiia cac nguyen to C,H,0,N trong dd N chiem 15,73 %
ve khoi lugng. Chat A tac dyng dugc vdi NaOH va HCl va deu theo ty le 1:1 ve so mol. Chat A cd san trong thien nhien va ton tai o trang thai ran. Cong thiic cau tao cua A cd the la
A. NH2CH2CH2COOH C. HCOOCH2CH2NH2 C. HCOOCH2CH2NH2
Ddp dn A
3.16. Cho so do bien boa
B. CH2=CHCOONH4 D. NH2CH2COOCH3 D. NH2CH2COOCH3
C H 2112 -A- - ^ B Cac chit A, B, D lin lugt la A. CfiHe, C6H5NO2, C6H5NH3CI C. C6H,2, C6H6, C6H5NO2
Ddp dn A
-D C6H5NH2
B.C6H6,C6H5C1,C6H5N02 D. C6H6, C6H5NO2, C6H4(N02)2
3.17. Cho cac hgp chit hiru co: phenyl metyl ete, toluen, anilin, phenol. Trong so
cac chat da cho, nhimg chit cd thi lam mit mau dung dich brom la A. Toluen, anilin, phenol
B. Phenyl metyl ete, toluen, anilin, phenol C. Phenyl metyl ete, anilin, phenol
D. Phenyl metyl ete, toluen, phenol
Ddp dn A
3.18. Hay sap xep cac chat sau day theo trat ty tang dan tinh bazo: NH3, CH3NH2,
C6H5NH2; (CH3)2NH va (C6H5)2NH: A. (C6H5)2NH, NH3, C6H5NH2, (CH3)2NH, CH3NH2 B. (C6H5)2NH, C6H5NH2, NH3, CH3NH2, (CH3)2NH C. (CH3)2NH, CH3NH2,NH3, C6H5NH2, (C6H5)2NH D. NH3, CH3NH2, C6H5NH2, (CH3)2NH, (C6H5)2NH Ddp dn B
3.19. Hgp chat nao sau day khong phai la amino axit ?
A. NH2CH2COOH B. HOOCCH2CHNH2COOH C. CH3NHCH2COOH D. CH3CH2CONH2 C. CH3NHCH2COOH D. CH3CH2CONH2
Ddp dn D
3.20. Cho X la mot amino axit. Khi cho 0,0Imol X tac dyng vdi HCl thi dimg hit
80ml dung dich HCl 0,125M va thu dugc l,835gam muli khan . Con khi cho 0,01mol X tac dyng vdi dung dich NaOH thi can dung 25gam NaOH 3,2%). Cong thiic cau tao cua X la
A. NH2C3H6COOH B. C1NH3C3H3(C00H)2 C. NH2C3H5(COOH)2. D. (NH2)2C3H5C00H C. NH2C3H5(COOH)2. D. (NH2)2C3H5C00H
Ddp dn C
3.21. Cd the tach rieng cac chat tir bin hgp long gom benzen va anilin bang
nhiing chat nao?
A. Dung dich NaOH, dung dich brom B. Dung dich HCl, dung dich NaOH C. H2O, dung dich brom
D. Dung dich NaCl, dung dich brom
3.22. De phan biet cac dung dich glucozo, glixerol, andehit axetic, ancol etylic va
long tring tning ta dimg:
A. NaOH B. AgN03/NH3 C. Cu(0H)2 D. HNO3
Ddp dn C
3.23. Trong cac chat: metyl benzoat, natri phenolat, ancol benzylic, phenyl amoni clorua, glixerin, protein. So chit tac dung dugc vdi dung dich NaOH la A. 3 B.2 C.5 D . 4
Ddp dn A
3.24. Trong cac chit: P-NO2-C6H4-NH2; P-CH3O-C6H4-NH2;
P-NH2-C6H4-CHO; C6H5-NH2. Chit cd tinh bazo manh nhit la A. P-NO2-C6H4-NH2 B. P-CH3O-C6H4-NH2 C. P-NH2-C6H4-CHO D. C6H5-NH2
Ddp dn B
3.25. C4H11N cd so dong phan amin bac 1 la
A. 2 B.3 C.4 D . 5
Ddp dn C
3.26. Cho 14,7 gam mot amino axit X (cd 1 nhdm NH2) tac dung vdi NaOH du
thu dugc 19,1 gam muoi. Mat khac ciing lugng amino axit tren phan ling voi HCl du tao 18,35 gam muoi. Cong thirc cau tao cua X cd the la
A. NH2-CH2-COOH B. CH3-CH(NH2)COOH B. CH3-CH(NH2)COOH C.NH2-(CH2)6-COOH