12.6. Co cac dung dich riSng biet sau:
C6H5 - NH3CI (phenylamoni clorua),
H 2 N - C H 2 - C H 2 - C H ( N H 2) - COOH , CIH3N - C H 2 - COOH , HOOC - C H 2 - C H 2 - C H ( N H 2) - COOH , H 2 N - CHj - COONạ HOOC - C H 2 - C H 2 - C H ( N H 2) - COOH , H 2 N - CHj - COONạ S6' luong cac dung dich co pH < 7 la
Ạ 2 dung djch. B. 4 dung djch. C. 5 dung dich. D. 3 dung dich.
12.7. Dun nong chat H 2 N - C H 2- C O N H - C H ( C H 3 ) - C O N H- C H 2- C O O H trong dung dich HCl (dir), sau khi cac phan iimg ket thuc thu duoc cac san trong dung dich HCl (dir), sau khi cac phan iimg ket thuc thu duoc cac san ph^m la Ạ H 2 N - C H 2 - COOH, H j N - C H 2 - C H 2 - COOH . B. H3N+ - C H 2 - c o o H c r , H3N+ - C H 2 - C H 2 - c o o H c r . C. H 3 N^ - C H 2- C O O H C r , H 3 N ^ - C H ( C H 3) - C O O H C r . D. H 2 N - C H 2- C O O H , H 2 N- C H ( C H 3 ) - C O O H . 59
12.8. Cho 8,9 gam m6t hop chat hiJu co X c6 c6ng thuc phan tir C,H702N phan ung vdi 100 ml dung dich NaOH 1,5M. Sau khi phan iimg xay ra hôn ung vdi 100 ml dung dich NaOH 1,5M. Sau khi phan iimg xay ra hôn toan, c6 can dung dich thu dugc 11,7 gam chat ran.
C6ng thuc cáu tao thu gon ciia X la
Ạ HCOOH,NCH = CH,. B. H^NCH^CH^COOH. C. CHj = CHCOONH4. D. HjNCH^COOCHv
12.9. Chat phan limg vcri dung dich FeCls cho két tiia la
Ạ CH3NH2 . B. CH3COOCH3.
C. CH3OH . D. CH3COOH .
12.10. Cho chat huu co X co c6ng thurc phan t i i QH^ÔNj tac dung vdi dung djch NaOH, thu dirge chat hiJu co don chuc Y va cac chát v6 cọ djch NaOH, thu dirge chat hiJu co don chuc Y va cac chát v6 cọ
Khd'i lucmg phan lir (theo dvC) ciia Y la
Ạ 85dvC. B. 68dvC. C. 45dvC. D. 46dvC.
12.11. Cho 5,9 gam amin don chtic X tac dung vira du v6i dung dich HCl, sau . khi phan ung xay ra hoan toan thu dugc dung dich Y . Lam bay hoi dung . khi phan ung xay ra hoan toan thu dugc dung dich Y . Lam bay hoi dung
dich Y dugc 9,55 gam mu6'i khan.
So c6ng thitc cáu tao umg vdi c6ng thírc phan tir cua X la Ạ 5 c6ng thiic. ' B. 2 c6ng thirc. C. '3 c6ng thuc. D. 4 cCng thiic.
12.12. Trong phan tijr amino axit X co mAt nhom amino va m6t nhom cacboxyl. Cho 15,0 gam X tac dung vura du vdi dung dich NaOH, c6 can cacboxyl. Cho 15,0 gam X tac dung vura du vdi dung dich NaOH, c6 can dung dich sau phan ihig thu dugc 19,4 gam mud'i khan.
Cong thirc ciia X la
Ạ HjNC.H^COOH. B. H2NC,H,COOH.
C. H2NC2H4COOH. D. H2NCH2COOH.
12.13. SO d6ng phan cáu tao ciia amin bac m6t co cung c6ng thirc phan tir C^Hi.Nla C^Hi.Nla
Ạ 4. B. 2. C. 5. D. 3.
12.14. Chat X CO cong thiJc phan til C , ! ! ^ ^ ^ va lam mat mau dung djch brom.
Ten ggi cua X la
A . metyl aminoaxetat. B. axit p-aminopropionic. C. axit a-aminopropionic. D. amoni acrylat.
12.15. S6 dipcptit t6'i da co the tao ra tir mOt h6n hgp g6ni alanin va glyxin la
Ạ 1 B. 2
C. 3 D . 4
An
12.16. Cho hai hgp chat hOu co X , Y co cung c6ng thiic phan tu la C^H.NOj. Khi phan ling vdi dung dich NaOH, X tao ra H2NCH2COONa va chat huu
Khi phan ling vdi dung dich NaOH, X tao ra H2NCH2COONa va chat huu
CO Z; c5n Y tao ra C H j = CHCOONa va khi T. Cac chat Z va T Lin lugt la
Ạ CH,NH2 va N H , B. C2H,OH va N j C . CH.OH va CH,NH2 b . CH3OH va N H ,
12.17. Cho 0,02 mol amino axit X tac dung vira dii vdi 200 ml dung dich HCl 0,1M thu dugc 3,67 gam mu6'i khan. Mat khac 0,02 mol X tac dung vua 0,1M thu dugc 3,67 gam mu6'i khan. Mat khac 0,02 mol X tac dung vua du vdi 40 gam dung dich NaOH 4%. Cong thuc cua X la
A . H2NC,H,(COOH)2 B. (H2N)2C,HsCOOH C . H2NC2H,(COOH)2 D. H^NC^HfiCOOH
12.18. Cho 1 mol amino axit X phan ung vdi dung dich HCl (du), thu dugc m, gam mud'i Y . Cung 1 mol amino axit X phan ihig vdi dung dich NaOH gam mud'i Y . Cung 1 mol amino axit X phan ihig vdi dung dich NaOH (du), thu dugc m2 gam mud'i Z. Bi^'t m j - m, = 7,5.
Cdng thiic phan tii ciia X la
Ạ C^HioOjNj B. C4H«04N2
C . C , H , , 0 2 N D . C , R P 4 N 2.19. Cho 10 gam amin đn chiic X phan ling hoan toan vdi HCl (du), thu dugc 2.19. Cho 10 gam amin đn chiic X phan ling hoan toan vdi HCl (du), thu dugc ' 15 gam mud'ị Sd đng phan cáu tao ciia X la
A . 5 B. 7
C. 4 D . 8
2.20. Thuoc thiJr dugc diing đ phan biet G l y - A l a - G l y vdi G l y - A l a la Ạ dung djch NaOH. Ạ dung djch NaOH.
B. Cu(OH)2 trong indi trudng kiem.
C . dung dich NaCị D. dung dich HCl.
