C\u00e1c c\u00e2u h\u1ecfi c\u00f3 l\u1eddi gi\u1ea3i chi ti\u1ebft s\u1ebd gi\u00fap c\u00e1c em \u00f4n t\u1eadp k\u1ef9 l\u1ea1i l\u00fd thuy\u1ebft tr\u1ecdng t\u00e2m v\u1ec1 aminoaxit \u0111\u1ec3 c\u00f3 th\u1ec3 l\u00e0m b\u00e0i t\u1eadp t\u1ed1t nh\u1ea5t.<\/p>\n

L\u00dd THUY\u1ebeT TR\u1eccNG T\u00c2M V\u1ec0 AMINO AXIT<\/strong><\/p>\n

C\u00e2u 1: <\/strong>Axit glutamic (HCOO(CH_{2<\/sub>)2<\/sub>CH(NH2<\/sub>)COOH) l\u00e0 ch\u1ea5t<\/p>\n}

A.<\/strong> Ch\u1ec9 c\u00f3 t\u00ednh axit\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B.<\/strong> Ch\u1ec9 c\u00f3 t\u00ednh bazo<\/p>\n

C.<\/strong> L\u01b0\u1ee1ng t\u00ednh\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D.<\/strong> Trung t\u00ednh<\/p>\n

C\u00e2u 2: <\/strong>\u1ee8ng v\u1edbi c\u00f4ng th\u1ee9c C_{3<\/sub>H7<\/sub>O2<\/sub>N c\u00f3 bao nhi\u00eau \u0111\u1ed3ng ph\u00e2n amino axit ?<\/p>\n}

A.<\/strong> 2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B.<\/strong> 3\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 C.<\/strong> 4\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D.<\/strong> 5<\/p>\n

C\u00e2u 3: <\/strong>\u0110\u1ec3 ch\u1ee9ng minh glyxin C_{2<\/sub>H5<\/sub>O2<\/sub>N l\u00e0 m\u1ed9t amino axit , ch\u1ec9 c\u1ea7n cho p\u1ee9 v\u1edbi<\/p>\n}

A.<\/strong> NaOH\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B.<\/strong> HCl\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 C.<\/strong> CH_{3<\/sub>OH\/HCl\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D.<\/strong> HCl v\u00e0 NaOH<\/p>\n}

C\u00e2u 4: <\/strong>H\u1ee3p ch\u1ea5t kh\u00f4ng l\u00e0m \u0111\u1ed5i m\u00e0u gi\u1ea5y qu\u1ef3 \u1ea9m l\u00e0 :<\/p>\n

A.<\/strong> CH_{3<\/sub>NH2<\/sub>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B.<\/strong> C6<\/sub>H5<\/sub>ONa<\/p>\n}

C.<\/strong> H_{2<\/sub>N \u2013 CH2<\/sub> \u2013 CH(NH2<\/sub>) \u2013 COOH\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D.<\/strong> H2<\/sub>NCH2<\/sub>COOH<\/p>\n}

C\u00e2u 5: <\/strong>Axit amino axetic kh\u00f4ng t\u00e1c d\u1ee5ng v\u1edbi ch\u1ea5t :<\/p>\n

A.<\/strong> CaCO_{3<\/sub>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B.<\/strong> H2<\/sub>SO4<\/sub> lo\u00e3ng<\/p>\n}

C.<\/strong> KCl\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D.<\/strong> CH_{3<\/sub>OH<\/p>\n}

C\u00e2u 6: <\/strong>Aminoaxit c\u00f3 kh\u1ea3 n\u0103ng tham gia ph\u1ea3n \u1ee9ng este h\u00f3a v\u00ec :<\/p>\n

A.<\/strong> Aminoaxit l\u00e0 ch\u1ea5t l\u01b0\u1ee1ng t\u00ednh<\/p>\n

B.<\/strong> Aminoaxit ch\u1ee9c nh\u00f3m ch\u1ee9c \u2013 COOH<\/p>\n

C.<\/strong> Aminoaxit ch\u1ee9c nh\u00f3m ch\u1ee9c \u2013 NH_{2<\/sub><\/p>\n}

D.<\/strong> T\u1ea5t c\u1ea3 \u0111\u1ec1u sai<\/p>\n

C\u00e2u 7: <\/strong>Ch\u1ea5t X c\u00f3 CT l\u00e0 C_{3<\/sub>H7<\/sub>O2<\/sub>N . X c\u00f3 th\u1ec3 t\u00e1c d\u1ee5ng v\u1edbi NaOH , HCl v\u00e0 l\u00e0m m\u1ea5t m\u00e0u dd Br. CT c\u1ee7a X l\u00e0:<\/p>\n}

A.<\/strong> CH_{2<\/sub> = CH COONH4<\/sub>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B.<\/strong> CH3<\/sub>CH(NH2<\/sub>)COOH<\/p>\n}

C.<\/strong> H_{2<\/sub>NCH2<\/sub>CH2<\/sub>COOH\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D.<\/strong> CH3<\/sub>CH2<\/sub>CH2<\/sub>NO2<\/sub><\/p>\n}

C\u00e2u 8: <\/strong>Cho c\u00e1c ph\u1ea3n \u1ee9ng:<\/p>\n

H_{2<\/sub>N – CH2 <\/sub>– COOH + HCl \u00a0\u00e0 \u00a0H3<\/sub>N^{+<\/sup>– CH2<\/sub> \u2013 COOHCl–<\/sup><\/p>\n}}

H_{2<\/sub>N – CH2<\/sub> – COOH + NaOH \u00a0\u00e0 \u00a0H2<\/sub>N – CH2 <\/sub>– COONa + H2<\/sub>O.<\/p>\n}

Hai ph\u1ea3n \u1ee9ng tr\u00ean ch\u1ee9ng t\u1ecf axit aminoaxetic<\/p>\n

A.<\/strong> c\u00f3 t\u00ednh ch\u1ea5t l\u01b0\u1ee1ng t\u00ednh.<\/p>\n

B.<\/strong> ch\u1ec9 c\u00f3 t\u00ednh axit.<\/p>\n

C.<\/strong> ch\u1ec9 c\u00f3 t\u00ednh baz\u01a1.<\/p>\n

D.<\/strong> v\u1eeba c\u00f3 t\u00ednh oxi ho\u00e1, v\u1eeba c\u00f3 t\u00ednh kh\u1eed.<\/p>\n

C\u00e2u 9: <\/strong>Nh\u1eefng ch\u1ea5t n\u00e0o sau \u0111\u00e2y l\u01b0\u1ee1ng t\u00ednh :<\/p>\n

A.<\/strong> NaHCO_{3<\/sub>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B.<\/strong> H2<\/sub>N-CH2<\/sub>-COOH<\/p>\n}

C.<\/strong> CH_{3<\/sub>COONH4<\/sub>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D.<\/strong> C\u1ea3 A, B, C<\/p>\n}

C\u00e2u 10: <\/strong>Ch\u1ea5t X c\u00f3 c\u00f4ng th\u1ee9c ph\u00e2n t\u1eed C_{4<\/sub>H9<\/sub>O2<\/sub>N . Bi\u1ebft :<\/p>\n}

X + NaOH \u2192 Y + CH_{4<\/sub>O; Y + HCl (d\u01b0) \u2192 Z + NaCl<\/p>\n}

C\u00f4ng th\u1ee9c c\u1ea5u t\u1ea1o c\u1ee7a X v\u00e0 Z l\u1ea7n l\u01b0\u1ee3t l\u00e0<\/p>\n

A.<\/strong> H_{2<\/sub>NCH2<\/sub>CH2<\/sub>COOCH3<\/sub> v\u00e0 CH3<\/sub>CH(NH3<\/sub>Cl)COOH<\/p>\n}

B.<\/strong> CH_{3<\/sub>CH(NH2<\/sub>)COOCH3<\/sub> v\u00e0 CH3<\/sub>CH(NH3<\/sub>Cl)COOH<\/p>\n}

C.<\/strong> H_{2<\/sub>NCH2<\/sub>COOC2<\/sub>H5<\/sub> v\u00e0 ClH3<\/sub>NCH2<\/sub>COOH<\/p>\n}

D.<\/strong> CH_{3<\/sub>CH(NH2<\/sub>)COOCH3 <\/sub>v\u00e0 CH3<\/sub>CH(NH2<\/sub>)COOH<\/p>\n}

C\u00e2u 11: <\/strong>Ch\u1ea5t X c\u00f3 c\u00f4ng th\u1ee9c ph\u00e2n t\u1eed C_{3<\/sub>H7<\/sub>O2<\/sub>N v\u00e0 l\u00e0m m\u1ea5t m\u00e0u dung d\u1ecbch brom. T\u00ean g\u1ecdi c\u1ee7a X l\u00e0<\/p>\n}

A.<\/strong> axit \u03b2-aminopropionic\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B.<\/strong> mety aminoaxetat<\/p>\n

C.<\/strong> axit \u03b1- aminopropionic\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D.<\/strong> amoni acrylat<\/p>\n

C\u00e2u 12: <\/strong>M\u1ed9t amino axit A c\u00f3 40,4% C ; 7,9% H ; 15,7 % N; 36%O v\u00e0 M_{A<\/sub> = 89. C\u00f4ng th\u1ee9c ph\u00e2n t\u1eed c\u1ee7a A l\u00e0 :<\/p>\n}

A.<\/strong> C_{4<\/sub>H9<\/sub>O2<\/sub>N \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B.<\/strong> C3<\/sub>H5<\/sub>O2<\/sub>N<\/p>\n}

C.<\/strong> C_{2<\/sub>H5<\/sub>O2<\/sub>N\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D.<\/strong> C3<\/sub>H7<\/sub>O2<\/sub>N<\/p>\n}

C\u00e2u 13: <\/strong>Cho c\u00e1c ch\u1ea5t sau \u0111\u00e2y:<\/p>\n

(1) CH_{3<\/sub>-CH(NH2<\/sub>)-COOH\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (2) OH-CH2<\/sub>-COOH<\/p>\n}

(3) CH_{2<\/sub>O v\u00e0 C6<\/sub>H5<\/sub>OH\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (4) C2<\/sub>H4<\/sub>(OH)2<\/sub> v\u00e0 p – C6<\/sub>H4<\/sub>(COOH)2<\/sub><\/p>\n}

(5) (CH_{2<\/sub>)6<\/sub>(NH2<\/sub>)2<\/sub> v\u00e0 (CH2<\/sub>)4<\/sub>(COOH)2<\/sub><\/p>\n}

C\u00e1c tr\u01b0\u1eddng h\u1ee3p c\u00f3 kh\u1ea3 n\u0103ng tham gia ph\u1ea3n \u1ee9ng tr\u00f9ng ng\u01b0ng?<\/p>\n

A.<\/strong> 1, 2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B.<\/strong> 3, 5<\/p>\n

C.<\/strong> 3, 4\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D.<\/strong> 1, 2, 3, 4, 5.<\/p>\n

C\u00e2u 14: <\/strong>Cho dung d\u1ecbch ch\u1ee9a c\u00e1c ch\u1ea5t sau :X1 : C_{6<\/sub>H5<\/sub> – NH2<\/sub>; X2 : CH3<\/sub> – NH2<\/sub>; X3 : NH2<\/sub> – CH2<\/sub> \u2013 COOH; X4 : HOOC-CH2<\/sub>-CH2<\/sub>-CHNH2<\/sub>COOH; X5 : H2<\/sub>N- CH2<\/sub>-CH2<\/sub>-CH2<\/sub>-CHNH2<\/sub>COOH.<\/p>\n}

Dung d\u1ecbch n\u00e0o l\u00e0m qu\u1ef3 t\u00edm h\u00f3a xanh ?<\/p>\n

A.<\/strong> X1, X2, X5\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B.<\/strong> X2, X3, X4<\/p>\n

C.<\/strong> X2, X5\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D.<\/strong> X1, X3, X5<\/p>\n

C\u00e2u 15: <\/strong>M\u1ed9t ch\u1ea5t h\u1eefu c\u01a1 X c\u00f3 CTPT C_{3<\/sub>H9<\/sub>O2<\/sub>N. Cho t\u00e1c d\u1ee5ng v\u1edbi dung d\u1ecbch NaOH \u0111un nh\u1eb9, thu \u0111\u01b0\u1ee3c mu\u1ed1i Y v\u00e0 kh\u00ed l\u00e0m xanh gi\u1ea5y qu\u1ef3 t\u1ea9m \u01b0\u1edbt. Nung Y v\u1edbi v\u00f4i t\u00f4i x\u00fat thu \u0111\u01b0\u1ee3c kh\u00ed etan. Cho bi\u1ebft CTCT ph\u00f9 h\u1ee3p c\u1ee7a X ?<\/p>\n}

A.<\/strong> CH_{3<\/sub>COOCH2<\/sub>NH2<\/sub>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B.<\/strong> C2<\/sub>H5<\/sub>COONH4<\/sub>.<\/p>\n}

C.<\/strong> CH_{3<\/sub>COONH3<\/sub>CH3<\/sub>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D.<\/strong> C\u1ea3 A, B, C<\/p>\n}

C\u00e2u 16: <\/strong>C\u00e1c ch\u1ea5t X, Y, Z c\u00f3 c\u00f9ng CTPT C_{2<\/sub>H5<\/sub>O2<\/sub>N. X t\u00e1c d\u1ee5ng \u0111\u01b0\u1ee3c c\u1ea3 v\u1edbi\u00a0 HCl v\u00e0 Na2<\/sub>O. Y t\u00e1c d\u1ee5ng \u0111\u01b0\u1ee3c v\u1edbi H m\u1edbi sinh t\u1ea1o ra Y1. Y1 t\u00e1c d\u1ee5ng v\u1edbi H2SO4 t\u1ea1o ra mu\u1ed1i Y2. Y2 t\u00e1c d\u1ee5ng v\u1edbi NaOH t\u00e1i t\u1ea1o l\u1ea1i Y1. Z t\u00e1c d\u1ee5ng v\u1edbi NaOH t\u1ea1o ra m\u1ed9t mu\u1ed1i v\u00e0 kh\u00ed NH3<\/sub>. CTCT \u0111\u00fang c\u1ee7a X, Y, Z \u00a0l\u00e0:<\/p>\n}

A.<\/strong> X (HCOOCH2NH2), Y (CH3COONH4), Z (CH2NH2COOH)<\/p>\n

B.<\/strong> X(CH3COONH4), Y (HCOOCH2NH2),\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Z (CH2NH2COOH)<\/p>\n

C.<\/strong> X (CH3COONH4), Y (CH2NH2COOH), Z (HCOOCH2NH2)<\/p>\n

D.<\/strong> X (CH2NH2COOH), Y (CH3CH2NO2), Z (CH3COONH4)<\/p>\n

C\u00e2u 17: <\/strong>Dung d\u1ecbch c\u1ee7a ch\u1ea5t n\u00e0o sau \u0111\u00e2y kh\u00f4ng l\u00e0m \u0111\u1ed5i m\u00e0u qu\u1ef3 t\u00edm :<\/p>\n

A.<\/strong> Glixin (CH_{2<\/sub>NH2<\/sub>-COOH)<\/p>\n}

B.<\/strong> Lizin (H_{2<\/sub>NCH2<\/sub>-[CH2<\/sub>]3<\/sub>CH(NH2<\/sub>)-COOH)<\/p>\n}

C.<\/strong> Axit glutamic (HOOCCH_{2<\/sub>CHNH2<\/sub>COOH)<\/p>\n}

D.<\/strong> Natriphenolat (C_{6<\/sub>H5<\/sub>ONa)<\/p>\n}

C\u00e2u 18: <\/strong>Ch\u1ea5t n\u00e0o sau \u0111\u00e2y \u0111\u1ed3ng th\u1eddi t\u00e1c d\u1ee5ng \u0111\u01b0\u1ee3c v\u1edbi dung d\u1ecbch HCl v\u00e0 dung d\u1ecbch NaOH.<\/p>\n

A.<\/strong> C_{2<\/sub>H3<\/sub>COOC2<\/sub>H5<\/sub>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B.<\/strong> CH3<\/sub>COONH4<\/sub><\/p>\n}

C.<\/strong> CH_{3<\/sub>CH(NH2<\/sub>)COOH\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D.<\/strong> C\u1ea3 A, B, C<\/p>\n}

C\u00e2u 19: <\/strong>Cho qu\u1ef3 t\u00edm v\u00e0o m\u1ed7i dung d\u1ecbch h\u1ed7n h\u1ee3p d\u01b0\u1edbi \u0111\u00e2y, dung d\u1ecbch n\u00e0o l\u00e0m qu\u1ef3 t\u00edm h\u00f3a \u0111\u1ecf ?<\/p>\n

(1) H_{2<\/sub>N – CH2<\/sub> \u2013 COOH; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (2) Cl – NH3<\/sub>^{+<\/sup> . CH2<\/sub> \u2013 COOH;<\/p>\n}}

(3) NH_{2<\/sub> – CH2<\/sub> \u2013 COONa \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (4) H2<\/sub>N-\u00a0 CH2<\/sub>-CH2<\/sub>-CHNH2<\/sub>– COOH;<\/p>\n}

(5) HOOC-\u00a0 CH_{2<\/sub>-CH2<\/sub>-CHNH2<\/sub>– COOH<\/p>\n}

A.<\/strong> (2), (4)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B.<\/strong> (3), (1)<\/p>\n

C.<\/strong> (1), (5)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D.<\/strong> (2), (5).<\/p>\n

C\u00e2u 20: <\/strong>Cho ch\u1ea5t h\u1eefu c\u01a1 X c\u00f3 c\u00f4ng th\u1ee9c ph\u00e2n t\u1eed C_{2<\/sub>H8<\/sub>O3<\/sub>N2<\/sub> t\u00e1c d\u1ee5ng v\u1edbi dung d\u1ecbch NaOH, thu \u0111\u01b0\u1ee3c ch\u1ea5t h\u1eefu c\u01a1 \u0111\u01a1n ch\u1ee9c Y v\u00e0 c\u00e1c ch\u1ea5t v\u00f4 c\u01a1. Kh\u1ed1i l\u01b0\u1ee3ng ph\u00e2n t\u1eed (theo \u0111vC) c\u1ee7a Y l\u00e0<\/p>\n}

A.<\/strong> 85\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B.<\/strong> 68\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 C.<\/strong> 45\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D.<\/strong> 46<\/p>\n

C\u00e2u 21: <\/strong>Cho hai\u00a0 h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1 X, Y c\u00f3 c\u00f9ng c\u00f4ng th\u1ee9c ph\u00e2n t\u1eed l\u00e0 C_{3<\/sub>H7<\/sub>NO2<\/sub> . Khi ph\u1ea3n \u1ee9ng v\u1edbi dung d\u1ecbch NaOH, X t\u1ea1o ra H2<\/sub>NCH2<\/sub>COONa v\u00e0 ch\u1ea5t h\u1eefu c\u01a1 Z ; c\u00f2n Y t\u1ea1o ra CH2<\/sub>=CHCOONa v\u00e0 kh\u00ed T. C\u00e1c ch\u1ea5t Z v\u00e0 T l\u1ea7n l\u01b0\u1ee3t l\u00e0<\/p>\n}

A.<\/strong> CH_{3<\/sub>OH v\u00e0 CH3<\/sub>NH2<\/sub>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B.<\/strong> C2<\/sub>H5<\/sub>OH v\u00e0 N2<\/sub><\/p>\n}

C.<\/strong> CH_{3<\/sub>OH v\u00e0 NH3<\/sub>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D.<\/strong> CH3<\/sub>NH2<\/sub> v\u00e0 NH3<\/sub><\/p>\n}

C\u00e2u 22: <\/strong>H\u00e3y ch\u1ecdn tr\u00ecnh t\u1ef1 ti\u1ebfn h\u00e0nh n\u00e0o trong c\u00e1c tr\u00ecnh t\u1ef1 sau \u0111\u1ec3 ph\u00e2n bi\u1ec7t dung d\u1ecbch c\u00e1c ch\u1ea5t: CH_{3<\/sub>NH2<\/sub>, H2<\/sub>NCOOH, CH3<\/sub>COONH4<\/sub>, anbumin.<\/p>\n}

A.<\/strong> D\u00f9ng qu\u1ef3 t\u00edm, d\u00f9ng dd HNO_{3<\/sub> \u0111\u1eb7c , d\u00f9ng dd NaOH<\/p>\n}

B.<\/strong> D\u00f9ng qu\u1ef3 t\u00edm, d\u00f9ng Ca(OH)_{2<\/sub><\/p>\n}

C.<\/strong> D\u00f9ng Cu(OH)_{2<\/sub> , d\u00f9ng phenolphtalein, d\u00f9ng dd NaOH<\/p>\n}

D.<\/strong> D\u00f9ng qu\u1ef3 t\u00edm, d\u00f9ng dd CuSO_{4<\/sub>, d\u00f9ng dd NaOH<\/p>\n}

C\u00e2u 23: <\/strong>M\u1ed9t este c\u00f3 CT C_{3<\/sub>H7<\/sub>O2<\/sub>N, bi\u1ebft este \u0111\u00f3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ebf t\u1eeb amino axit X v\u00e0 r\u01b0\u1ee3u metylic. C\u00f4ng th\u1ee9c c\u1ea5u t\u1ea1o c\u1ee7a amino axit X l\u00e0:<\/p>\n}

A.<\/strong> CH_{3<\/sub> \u2013 CH2<\/sub> \u2013 COOH\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B.<\/strong> H2<\/sub>N \u2013 CH2<\/sub> \u2013 COOH<\/p>\n}

C.<\/strong> NH_{2<\/sub> \u2013 CH2<\/sub> \u2013 CH2<\/sub> \u2013 COOH\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D.<\/strong> CH3<\/sub> \u2013 CH(NH2<\/sub>) \u2013 COOH\u00a0<\/strong><\/p>\n}

L\u1edcI GI\u1ea2I CHI TI\u1ebeT<\/strong><\/p>\n

C\u00e2u 1: \u00a0<\/strong>\u0110\u00e1p \u00e1n : C<\/strong><\/p>\n

Trong ph\u00e2n t\u1eed axit glutamic HCOO(CH_{2<\/sub>)2<\/sub>CH(NH2<\/sub>)COOH c\u00f3 ch\u1ee9a -COOH (t\u00ednh axit) v\u00e0 nh\u00f3m -NH2<\/sub> (t\u00ednh bazo)<\/p>\n}

=> Axit glutamic l\u00e0 ch\u1ea5t c\u00f3 t\u00ednh l\u01b0\u1ee1ng t\u00ednh<\/p>\n

=> \u0110\u00e1p \u00e1n C<\/p>\n

C\u00e2u 2: <\/strong>\u0110\u00e1p \u00e1n : A<\/strong><\/p>\n

C\u00e1c \u0111\u1ed3ng ph\u00e2n amino axit c\u00f3 th\u1ec3 c\u00f3 l\u00e0:<\/p>\n

CH_{3<\/sub>CH(NH2<\/sub>)COOH ; H2<\/sub>NCH2<\/sub>CH2<\/sub>COOH ;<\/p>\n}

=> C\u00f3 2 \u0111\u1ed3ng ph\u00e2n<\/p>\n

=> \u0110\u00e1p \u00e1n A<\/p>\n

C\u00e2u 3: <\/strong>\u0110\u00e1p \u00e1n : D<\/strong><\/p>\n

Khi cho glyxin C2H5O2N :<\/p>\n

+) Ph\u1ea3n \u1ee9ng v\u1edbi HCl , ch\u1ee9ng t\u1ecf c\u00f3 nh\u00f3m NH2 : C2H3O2NH2<\/p>\n

+) Ph\u1ea3n \u1ee9ng v\u1edbi NaOH, ch\u1ee9ng t\u1ecf c\u00f3 nh\u00f3m COOH : HOOC-CH2-NH2<\/p>\n

=> \u0110\u00e1p \u00e1n D<\/p>\n

C\u00e2u 4: \u00a0\u00a0<\/strong>\u0110\u00e1p \u00e1n : D<\/strong><\/p>\n

+) CH3NH2 c\u00f3 ch\u1ee9a -NH2 \u00a0=> t\u00ednh bazo \u00a0=> Qu\u1ef3 ng\u1ea3 xanh<\/p>\n

+) C6H5ONa l\u00e0 mu\u1ed1i c\u1ee7a axit y\u1ebfu v\u00e0 bazo m\u1ea1nh \u00a0=> c\u00f3 t\u00ednh bazo \u00a0=> Qu\u1ef3 ng\u1ea3 xanh<\/p>\n

+) H2NCH2CH(NH2)COOH c\u00f3 ch\u1ee9a 2 nh\u00f3m -NH2 v\u00e0 1 nh\u00f3m -COOH<\/p>\n

=> t\u00ednh bazo tr\u1ed9i => Qu\u1ef3 ng\u1ea3 xanh<\/p>\n

+) H2NCH2COOH \u00a0c\u00f3 s\u1ed1 nh\u00f3m NH2 b\u1eb1ng COOH \u00a0=> t\u1ea1o m\u00f4i tr\u01b0\u1eddng trung t\u00ednh<\/p>\n

=> \u0110\u00e1p \u00e1n D<\/p>\n

C\u00e2u 5: <\/strong>\u0110\u00e1p \u00e1n : C<\/strong><\/p>\n

Ch\u1ec9 KCl kh\u00f4ng ph\u1ea3n \u1ee9ng v\u1edbi axit amino axetic :<\/p>\n

CaCO3 + \u00a02 H2NCH2COOH \u00a0\u00e0 \u00a0(H2NCH2COO)2Ca \u00a0 + CO2 + H2O<\/p>\n

H2SO4 \u00a0+ H2NCH2COOH \u00a0\u00e0 \u00a0HOOCCH2NH3HSO4<\/p>\n

CH3OH \u00a0+ H2NCH2COOH \u00a0\u00e0 H2NCH2COOCH3<\/p>\n

=> \u0110\u00e1p \u00e1n C<\/p>\n

C\u00e2u 6: <\/strong>\u0110\u00e1p \u00e1n : B<\/strong><\/p>\n

Amino axit ch\u1ee9a nh\u00f3m -COOH trong ph\u00e2n t\u1eed<\/p>\n

=> Mang \u0111\u1ea7y \u0111\u1ee7 t\u00ednh ch\u1ea5t c\u1ee7a axit cacbonxylic, do \u0111\u00f3 amino axit c\u00f3 ph\u1ea3n \u1ee9ng este h\u00f3a<\/p>\n

=> \u0110\u00e1p \u00e1n B<\/p>\n

C\u00e2u 7: \u00a0<\/strong>\u0110\u00e1p \u00e1n : A<\/strong><\/p>\n

X\u00e9t th\u1ea5y X ch\u1ee9a 2 nguy\u00ean t\u1eed oxi v\u00e0 1 nito<\/p>\n

+) T\u00e1c d\u1ee5ng v\u1edbi NaOH \u00a0=> c\u00f3 nh\u00f3m -COOH , ho\u1eb7c c\u00f3 t\u00ednh axit<\/p>\n

+) T\u00e1c d\u1ee5ng v\u1edbi HCl \u00a0=> c\u00f3 nh\u00f3m -NH2 , ho\u1eb7c c\u00f3 t\u00ednh bazo<\/p>\n

+) M\u1ea5t m\u00e0u Br2 \u00a0=> c\u00f3 n\u1ed1i \u0111\u00f4i (C=C)<\/p>\n

D\u1ef1a v\u00e0o 3 ti\u00eau chu\u1ea9n tr\u00ean v\u00e0 c\u00e1c \u0111\u00e1p \u00e1n => X l\u00e0 CH2=CHCOONH4<\/p>\n

=> \u0110\u00e1p \u00e1n A<\/p>\n

C\u00e2u 8: \u00a0<\/strong>\u0110\u00e1p \u00e1n : A<\/strong><\/p>\n

Ph\u1ea3n \u1ee9ng v\u1edbi HCl ch\u1ee9ng t\u1ecf axit amino axetic c\u00f3 t\u00ednh bazo (nh\u1eadn proton H+)<\/p>\n

Ph\u1ea3n \u1ee9ng v\u1edbi NaOH ch\u1ee9ng t\u1ecf axit amino axetic c\u00f3 t\u00ednh axit (cho proton H+)<\/p>\n

=> Axit amino axetic c\u00f3 t\u00ednh l\u01b0\u1ee1ng t\u00ednh<\/p>\n

=> \u0110\u00e1p \u00e1n A<\/p>\n

C\u00e2u 9: \u00a0<\/strong>\u0110\u00e1p \u00e1n : D<\/strong><\/p>\n

C\u1ea3 3 ch\u1ea5t \u0111\u00e3 cho \u0111\u1ec1u l\u01b0\u1ee1ng t\u00ednh :<\/p>\n

+) NaHCO_{3<\/sub>: NaHCO3<\/sub> + H^{+<\/sup> \u00a0\u00e0 Na+ \u00a0+ CO2<\/sub> \u00a0+ H2<\/sub>O<\/p>\n}}

NaHCO_{3<\/sub>\u00a0\u00a0+ OH^{–<\/sup>\u00a0\u00e0\u00a0 Na+<\/sup> \u00a0 + CO3<\/sub>2- \u00a0<\/sup>+ H2<\/sub>O<\/p>\n}}

+) H_{2<\/sub>NCH2<\/sub>COOH : \u00a0\u00a0\u00a0H2<\/sub>NCH2<\/sub>COOH \u00a0+ H^{+<\/sup>\u00a0\u00e0\u00a0 H3<\/sub>+<\/sup>NCH2<\/sub>COOH<\/p>\n}}

H_{2<\/sub>NCH2<\/sub>COOH \u00a0+ OH^{–<\/sup> \u00a0\u00e0 \u00a0 H2<\/sub>NCH2<\/sub>COO–<\/sup> \u00a0 + H2<\/sub>O<\/p>\n}}

+) CH_{3<\/sub>COONH4<\/sub>: \u00a0CH3<\/sub>COONH4<\/sub> \u00a0+ H^{+<\/sup> \u00a0\u00e0 \u00a0CH3<\/sub>COO–<\/sup> \u00a0 + NH4<\/sub>+<\/p>\n}}

CH_{3<\/sub>COONH4 <\/sub>\u00a0 + OH^{–<\/sup>\u00e0\u00a0 CH3<\/sub>COO–<\/sup> + NH3 <\/sub>\u00a0+ H2<\/sub>O<\/p>\n}}

=> \u0110\u00e1p \u00e1n D<\/p>\n

C\u00e2u 10: \u00a0\u00a0<\/strong>\u0110\u00e1p \u00e1n : B<\/strong><\/p>\n

X + NaOH\u00a0\u2192 \u00a0Y +\u00a0CH_{4<\/sub>O m\u00e0\u00a0CH4<\/sub>O l\u00e0 CH3OH<\/p>\n}

=> X l\u00e0 este c\u1ee7a CH3OH v\u1edbi amino axit<\/p>\n

=> X c\u00f3 CTCT : H2NRCOOCH3 (H2NCH2CH2COOCH3 ho\u1eb7c H2NCH(CH3)COOCH3)<\/p>\n

\u1ee8ng v\u1edbi 2 ch\u1ea5t X tr\u00ean, Z l\u00e0 ClH3NCH2CH2COOH ho\u1eb7c H2NCH(NH3Cl)COOH<\/p>\n

Trong c\u00e1c \u0111\u00e1p \u00e1n \u0111\u00e3 cho, c\u1eb7p ch\u1ea5t CH3CH(NH2)COOCH3 v\u00e0 CH3CH(NH3Cl)COOH th\u1ecfa m\u00e3n<\/p>\n

=> \u0110\u00e1p \u00e1n B<\/p>\n

C\u00e2u 11: <\/strong>\u0110\u00e1p \u00e1n : D<\/strong><\/p>\n

X l\u00e0m m\u1ea5t m\u00e0u Br2 \u00a0=> X ch\u1ee9a n\u1ed1i \u0111\u00f4i C=C<\/p>\n

=> X l\u00e0 CH2=CHCOONH4 \u00a0(Amoni acrylat)<\/p>\n

CH2=CHCOONH4 \u00a0+ Br2 \u00a0\u00e0\u00a0 CH2BrCHBrCOONH4<\/p>\n

=> \u0110\u00e1p \u00e1n D<\/p>\n

C\u00e2u 12: <\/strong>\u0110\u00e1p \u00e1n : D<\/strong><\/p>\n

G\u1ecdi c\u00f4ng th\u1ee9c c\u1ee7a A l\u00e0 CxHyOzNt<\/p>\n

=> x =\u00a0.40,4% = 3 \u00a0; y =\u00a0.7,9% = 7 ; z =\u00a0.36% = 2 ;<\/p>\n

t =\u00a0.15,7% = 1<\/p>\n

=> A l\u00e0 C3H7O2N<\/p>\n

=> \u0110\u00e1p \u00e1n D<\/p>\n

C\u00e2u 13: <\/strong>\u0110\u00e1p \u00e1n : D<\/strong><\/p>\n

Nh\u1eefng ch\u1ea5t trong ph\u00e2n t\u1eed c\u00f3 \u00edt nh\u1ea5t hai nh\u00f3m ch\u1ee9c c\u00f3 kh\u1ea3 n\u0103ng ph\u1ea3n \u1ee9ng v\u1edbi nhau s\u1ebd c\u00f3 ph\u1ea3n \u1ee9ng tr\u00f9ng ng\u01b0ng.<\/p>\n

T\u1ea5t c\u1ea3 c\u00e1c ch\u1ea5t \u0111\u00e3 cho \u0111\u1ec1u th\u1ecfa m\u00e3n:<\/p>\n

(1) T\u00e1ch H2O t\u1ea1o peptit, ho\u1eb7c protein<\/p>\n

(2) T\u00e1ch H2O, t\u1ea1o polyeste<\/p>\n

(3) T\u00e1ch H2O, t\u1ea1o poly phenol – formandehit<\/p>\n

(4) T\u00e1ch H2O, tao \u00a0t\u1eeb l\u1ea5pn<\/p>\n

(5) T\u00e1ch H2O, t\u1ea1o t\u01a1 nilon 6,6<\/p>\n

=> \u0110\u00e1p \u00e1n D<\/p>\n

C\u00e2u 14: <\/strong>\u0110\u00e1p \u00e1n : C<\/strong><\/p>\n

M\u00f4i tr\u01b0\u1eddng m\u00e0 c\u00e1c ch\u1ea5t t\u1ea1o ra:<\/p>\n

X1: Bazo nh\u01b0ng y\u1ebfu , kh\u00f4ng l\u00e0m \u0111\u1ed5i m\u00e0u ch\u1ec9 th\u1ecb m\u00e0u<\/p>\n

X2 : Bazo<\/p>\n

X3 : L\u00e0 ch\u1ea5t l\u01b0\u1ee1ng t\u00ednh t\u1ea1o m\u00f4i tr\u01b0\u1eddng trung t\u00ednh<\/p>\n

X4 : L\u01b0\u1ee1ng t\u00ednh, t\u1ea1o mt axit<\/p>\n

X5: L\u01b0\u1ee1ng t\u00ednh, t\u1ea1o mt bazo<\/p>\n

=> X2, X5 th\u1ecfa m\u00e3n<\/p>\n

=> \u0110\u00e1p \u00e1n C<\/p>\n

C\u00e2u 15: <\/strong>\u0110\u00e1p \u00e1n : B<\/strong><\/p>\n

Nung Y v\u1edbi v\u00f4i t\u00f4i x\u00fat t\u1ea1o etan \u00a0=> Y l\u00e0 CH3CH2COONa<\/p>\n

=> X l\u00e0 CH3CH2COONH4<\/p>\n

CH3CH2COONH4 \u00a0+ NaOH –> CH3CH2COONa + NH3 + H2O<\/p>\n

=> \u0110\u00e1p \u00e1n B<\/p>\n

C\u00e2u 16: <\/strong>\u0110\u00e1p \u00e1n : D<\/strong><\/p>\n

X l\u00e0 CH2NH2COOH : + HCl —> CH2NH3ClCOOH<\/p>\n

+ Na2O \u00a0—> CH2NH2COONa + H2O<\/p>\n

Y l\u00e0 CH3CH2NO2: CH3CH2NO2 + [H] –> CH3CH2NH2 (Y1)<\/p>\n

CH3CH2NH2 \u00a0+ H2SO4 \u00a0–> CH3CH2NH3HSO4 \u00a0(Y2)<\/p>\n

CH3CH2NH3HSO4 \u00a0+ 2NaOH \u00a0—> CH3CH2NH2 \u00a0+ Na2SO4 \u00a0+ H2O<\/p>\n

Z l\u00e0 CH3COONH4: CH3COONH4 + NaOH \u00a0–> CH3COONa + NH3 + H2O<\/p>\n

=> \u0110\u00e1p \u00e1n D<\/p>\n

C\u00e2u 17: <\/strong>\u0110\u00e1p \u00e1n : A<\/strong><\/p>\n

Glyxin c\u00f3 s\u1ed1 nh\u00f3m -NH2 b\u1eb1ng s\u1ed1 nh\u00f3m -COOH<\/p>\n

=> T\u1ea1o mt trung t\u00ednh, kh\u00f4ng l\u00e0m \u0111\u1ed5i m\u00e0u qu\u1ef3<\/p>\n

=> \u0110\u00e1p \u00e1n A<\/p>\n

C\u00e2u 18: <\/strong>\u0110\u00e1p \u00e1n : D<\/strong><\/p>\n

c\u1ea3 3 ch\u1ea5t A,B,C \u0111\u1ec1u th\u1ecfa m\u00e3n<\/p>\n

Trong \u0111\u00f3, ch\u1ea5t B, C c\u00f3 t\u00ednh l\u01b0\u1ee1ng t\u00ednh<\/p>\n

A l\u00e0 este c\u00f3 ph\u1ea3n \u1ee9ng th\u1ee7y ph\u00e2n trong m\u00f4i tr\u01b0\u1eddng axit ho\u1eb7c ki\u1ec1m, nh\u01b0ng kh\u00f4ng l\u00e0 ch\u1ea5t l\u01b0\u1ee1ng t\u00ednh<\/p>\n

=> \u0110\u00e1p \u00e1n D<\/p>\n

C\u00e2u 19: \u00a0<\/strong>\u0110\u00e1p \u00e1n : D<\/strong><\/p>\n

L\u00e0m qu\u1ef3 t\u00edm h\u00f3a \u0111\u1ecf: (2); (5)<\/p>\n

L\u00e0 qu\u1ef3 t\u00edm h\u00f3a xanh: (3), (4)<\/p>\n

Kh\u00f4ng \u0111\u1ed5i m\u00e0u qu\u1ef3: (1)<\/p>\n

=> \u0110\u00e1p \u00e1n D<\/p>\n

C\u00e2u 20: <\/strong>\u0110\u00e1p \u00e1n : C<\/strong><\/p>\n

X l\u00e0 mu\u1ed1i c\u1ee7a axit nitric: CH3CH2NH3NO3<\/p>\n

CH3CH2NH3NO3 + NaOH \u00e0\u00a0CH3CH2NH2 + NaNO3 \u00a0+ H2O<\/p>\n

=> Y l\u00e0 etylamin , M Y = 45<\/p>\n

=> \u0110\u00e1p \u00e1n C<\/p>\n

C\u00e2u 21: <\/strong>\u0110\u00e1p \u00e1n : C<\/strong><\/p>\n

X l\u00e0 H2NCH2COOCH3 ; Y l\u00e0 CH2=CHCOONH4<\/p>\n

H2NCH2COOCH3 \u00a0+ NaOH \u00a0\u00e0\u00a0H2NCH2COONa \u00a0+ CH3OH (Z)<\/p>\n

CH2=CHCOONH4 \u00a0+ NaOH \u00a0\u00e0\u00a0CH2=CHCOONa + NH3 (T) \u00a0+ H2O<\/p>\n

=> \u0110\u00e1p \u00e1n C<\/p>\n

C\u00e2u 22: \u00a0<\/strong>\u0110\u00e1p \u00e1n : A<\/strong><\/p>\n

D\u00f9ng qu\u1ef3 t\u00edm nh\u1eadn bi\u1ebft \u0111\u01b0\u1ee3c CH3NH2 (h\u00f3a xanh c\u00e1c ch\u1ea5t kh\u00e1c kh\u00f4ng l\u00e0m \u0111\u1ed5i m\u00e0u)<\/p>\n

D\u00f9ng HNO3 \u0111\u1eb7c nh\u1eadn bi\u1ebft albumin (t\u1ea1o m\u00e0u v\u00e0ng)<\/p>\n

D\u00f9ng NaOH nh\u1eadn bi\u1ebft CH3COONH4 (t\u1ea1o kh\u00ed)<\/p>\n

Ch\u00fa \u00fd: H2NCOOH c\u00f3 t\u00ean g\u1ecdi l\u00e0 axit cacbonic<\/p>\n

=> \u0110\u00e1p \u00e1n A<\/p>\n

C\u00e2u 23: <\/strong>\u0110\u00e1p \u00e1n : B<\/strong><\/p>\n

Este c\u00f3 CTCT l\u00e0: H2NCH2COOCH3, \u0111i\u1ec1u ch\u1ebf t\u1eeb H2NCH2COOH v\u00e0 CH3OH<\/p>\n

=> \u0110\u00e1p \u00e1n B<\/p>\n

 <\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

C\u00e1c c\u00e2u h\u1ecfi c\u00f3 l\u1eddi gi\u1ea3i chi ti\u1ebft s\u1ebd gi\u00fap c\u00e1c em \u00f4n t\u1eadp k\u1ef9 l\u1ea1i l\u00fd thuy\u1ebft tr\u1ecdng t\u00e2m v\u1ec1 aminoaxit \u0111\u1ec3 c\u00f3 th\u1ec3 l\u00e0m b\u00e0i t\u1eadp t\u1ed1t nh\u1ea5t. L\u00dd THUY\u1ebeT TR\u1eccNG T\u00c2M V\u1ec0 AMINO AXIT C\u00e2u 1: Axit glutamic (HCOO(CH2)2CH(NH2)COOH) l\u00e0 ch\u1ea5t A. Ch\u1ec9 c\u00f3 t\u00ednh axit\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B. Ch\u1ec9 c\u00f3 t\u00ednh bazo C. […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[159],"tags":[],"yoast_head":"\n