www.tuhoc.edu.vn VD1: H2N–CH2–COOH; H2N–C3H5(COOH)2; … Các amino axit có nhóm NH2 R—CH—COOH NH2 VD2: CH3—CH—COOH : axit 2–aminopropanoic NH2 HOOC—CH2CH2CH—COOH : NH2 Các H2N–CH2–COOH H2N–CH–COOH CH3 H2N–CH–COOH CH(CH3)2 (H2N)2C5H9–COOH H2N–C3H5(COOH)2 glyxin Gly alanin Ala valin Val lysin axit glutamic Lys Glu htttp://tuhoc.edu.vn/blog www.tuhoc.edu.vn không A) H2NCH2COOH C) H2NC3H5(COOH)2 B) CH3COONH4 D) (H2N)2C5H9COOH A) H2N–CH2CH2– COOH C) H2N–(CH2)3–COOH B) H2N–CH(CH3)–COOH D) CH3COONH4 A) H2N–CH(CH3)–COONH4 C) H2N–CH(CH3)–COONa B) H2N–CH(CH3)–COOCH3 D) H2N–CH(CH3)–COOH không A) glyxin C) lysin B) anilin D) valin Các A) 2N–CHR–COOH B) metyl C) phenyl D) isopropyl 2N–CH(CH3)–COOH A) anilin C) glyxin B) valin D) alanin (1) axit glutaric: HOOC–CH2CH2CH2–COOH (2) axit caproic: HOOC–CH2CH2CH2CH2CH3 A) Lys A) C) B) Gly C) Glu D) Val B) D) htttp://tuhoc.edu.vn/blog www.tuhoc.edu.vn A (a) axit 2–amino–3–phenylpropanoic (b) axit 2–amino–3–metylbutanoic B 5H9NO4 axit glutamic là: A) H2N–CH2CH2CH2CH2–CH(NH2)–COOH B) HOOC–CH2CH2–CH(NH2)–COOH C) H2N–CH2CH2–CH(NO2)–COOH D) HOOC–CH2CH2CH2–CH(NH2)–COOH C A) axit 2–aminoetanoic B) axit 2-aminopropanoic C) axit 2-amino-3-metylbutanoic D) D 3H7O2N A) B) C) D) E 4H9NO2? A) F B) C) 3CH(CH3)NH2 D) (X) CH3CH(NH2)COOH (Y) A) propan–1–amin axit 2–aminopropanoic B) propan–1–amin axit aminoetanoic C) propan–2–amin axit aminoetanoic D) propan–2–amin axit 2–aminopropanoic htttp://tuhoc.edu.vn/blog www.tuhoc.edu.vn –COOH (axit) –NH2 R COOH R ↽ ⇀ NH2 COO NH3+ proton – • • • 2 • • • G 2 không A) u đa ch có nhóm –NH2 B) –amino axit có nhóm –NH2 C) D) Trong n thư u nư H ng ion lư không A) Các th B) Glyxin, alanin, lysin axit glutamic đ C) n thư tđ tđ D) t nư o nên protein cho amino axit ng ion lư htttp://tuhoc.edu.vn/blog www.tuhoc.edu.vn I A) H3N+−CH2−COO– B) CH3−CH(NH3+)−COO– C) CH3−CH(NH2)−COO– D) H2N−CH2−COOH J 3N A) Ala K B) Lys C) Gly +−CH −COO– X D) Glu u không 2N-CH2 A) 3N +−CH 2−COO – B) u t nhóm amino nhóm cacboxyl C) ađ t nư 3–CH2–COONH4 D) L CH3–CH(NH2)–COOH (X) H2N–CH2–COOH (Y) H2N–[CH2]4–CH(NH2)–COOH (Z) A) X, Y C) X, Z B) X, Y, Z D) M Cho amino axit sau: H2N–CH2–COOH (glyxin) H2N–[CH2]4–CH(NH2)–COOH (lysin) HOOC–[CH2]2–CH(NH2)–COOH (axit glutamic) A) lysin, glyxin, axit glutamic B) glyxin, axit glutamic, lysin C) axit glutamic, lysin, glyxin D) axit glutamic, glyxin, lysin N Dãy sau htttp://tuhoc.edu.vn/blog ch có pH > tan A) H2NCH2COOH, HCOOH, CH3NH2 B) CH3COOH, H2NCH2COOH, (CH3)3N C) CH3NHCH3, H2N–[CH2]4–CH(NH2)–COOH, NH3 D) NH4Cl, CH3NH2, CH3CH(NH2)COOH www.tuhoc.edu.vn O 2NCH2COOH (X); (CH3)2NH (Y); CH3CH2COOH (Z) A) X, Z, Y C) X, Y, Z B) Z, X, Y D) Y, X, Z P 2NCH2COOH; CH3CH2COOH CH3[CH2]3NH2 A) CH3[CH2]3NH2 < CH3CH2COOH < H2NCH2COOH B) CH3[CH2]3NH2 < H2NCH2COOH < CH3CH2COOH C) H2NCH2COOH < H2NCH2COOH < CH3[CH2]3NH2 D) CH3CH2COOH < H2NCH2COOH < CH3[CH2]3NH2 Q ClH3N–CH2–COOH (Y); H2N–CH2– A) Z < X < Y C) Y < X < Z 2N–CH2–COOH (X); B) X < Z < Y D) X < Y < Z R C6H5–NH3Cl (phenylamoni clorua) H2N–CH2–CH2–CH(NH2)–COOH ClH3N–CH2–COOH HOOC–CH2–CH2–CH(NH2)–COOH H2N–CH2–COONa A) B) C) D) S A) glyxin C) lysin B) alanin D) valin A) axit aminoaxetic C) axit B) axit D) T htttp://tuhoc.edu.vn/blog www.tuhoc.edu.vn R (COOH)a + aNaOH (NH2)b R (COOH)a + bHCl R + aH2O (COOH)a (NH3Cl)b (COOH)a (NH3Cl)b (COONa)a (NH2)b (NH2)b R R NaOH ↽ HCl ⇀ R (COOH)a NaOH ↽ (NH2)b ⇀ R HCl (COONa)a (NH2)b amino axit U A) amin, amino axit C) este, amino axit B) amin, este D) amino axit, axit cacboxylic A) X, Y, Z, T C) X, Y, Z B) X, Y, T D) Y, Z, T V W 2NCH2COOH, A) B) C) CH3COOH, CH3COOCH3 D) X 6H5OH (phenol), C6H5NH2 (anilin), CH3COOH, H2NCH2COOH; CH3CH2CH2NH2 A) C) C) D) htttp://tuhoc.edu.vn/blog www.tuhoc.edu.vn Y không A) H2NCH2COONa C) H2NCH2CH3 Z B) H2NCH2COOH D) CH3CH2COOH không A) ClH3NCH2COONa C) H2NCH2CH3 B) H2NCH2COOH D) CH3CH2COOH a A) CH3NH3Cl CH3NH2 B) CH3NH3Cl H2NCH2COONa C) CH3NH2 H2NCH2COOH C) ClH3NCH2COOH H2NCH2COOH b (1) C6H5NH3Cl (2) ClH3N–CH2–COOH (3) H2N–CH2CH2CH(NH2)–COOH (4) HOOC–CH2CH2CH(NH2)–COOH (5) H2N–CH2–COONa A) B) C) D) c A) X, Y, U C) X, Y, Z B) Z, T, U D) Y, Z, T d (1) CH3COOCH3 (2) CH3COONH4 (3) ClH3NCH2COOH (4) H2NCH2COOH A) B) C) D) htttp://tuhoc.edu.vn/blog www.tuhoc.edu.vn – Amino axit: – – H2N–R–COOH 2N–R–COOR' 3R' xHyOzNt 2, H2O, N2 bão hòa Amino axit H2N-R-COOH axit H2N-R-COOR' nhóm este cacboxylat RCOONH3R' H2N-R-COOH + NaOH H2N-R-COONa + H2O H2N-R-COOR' + NaOH H2N-R-COONa + R'OH RCOONH3R' + NaOH RCOONa + RNH2 + H2O k k 3) e A) H2NCH2COOCH3 C) CH3COONH4 B) H2NCH2COOH D) CH3COOC2H5 A) H2NCH2COOH C) CH2=CHCOONH4 B) CH3COONH3CH3 D) H2NCH2COOCH3 f g A) CH3NH3Cl CH3NH2 B) CH3NH3Cl H2NCH2COONa C) CH3NH2 H2NCH2COOH D) ClH3NCH2COOC2H5 H2NCH2COOC2H5 htttp://tuhoc.edu.vn/blog www.tuhoc.edu.vn • • h không B) C4H9NO2 D) C3H9NO2 A) C3H7NO2 C) C5H11NO2 i 2H7O2 A) B) C) D) j 3H7NO2 A) HCOONH3CH=CH2 CH2=CHCOONH4 B) CH2=CHCOONH4 H2N–CH(CH3)–COOH C) H2N–CH(CH3)–COOH CH2=CHCOONH4 D) H2N–CH(CH3)–COOH H2N–CH2CH2–COOH k 3H7NO2 Khi 2NCH2 A) CH3OH NH3 C) CH3NH2 NH3 l B) CH3OH CH3NH2 D) CH3CH2OH N2 3H7O2 A) metyl aminoaxetat C) axit α-aminopropionic B) axit β-aminopropionic D) amoni acrylat htttp://tuhoc.edu.vn/blog 10 www.tuhoc.edu.vn m 3H9O2 n 3H7NO2, A) vinylamoni fomat amoni acrylat B) amoni acrylat axit 2-aminopropionic C) axit 2-aminopropionic amoni acrylat D) axit 2-aminopropionic axit 3-aminopropionic o 4H9O2 X + NaOH Y + HCl (dư) Y + CH4O Z + NaCl A) H2NCH2CH2COOCH3 CH3CH(NH3Cl)COOH B) CH3CH(NH2)COOCH3 CH3CH(NH3Cl)COOH C) CH3CH(NH2)COOCH3 CH3CH(NH2)COOH D) H2NCH2COOC2H5 ClH3NCH2COOH htttp://tuhoc.edu.vn/blog 11 www.tuhoc.edu.vn Câu Câu Câu B I B Z C B J C a C D K D b D B L D c A D M A d C D N C e C O B f D A P D g D A Q C h D R D i C A B B S C j B C B T C k A D B U C l D E B V B m C F D W D n B G A X C o B H C Y D htttp://tuhoc.edu.vn/blog 12 [...]...www.tuhoc.edu.vn m 3H9O2 3 2 4 1 n 3H7NO2, A) vinylamoni fomat và amoni acrylat B) amoni acrylat và axit 2-aminopropionic C) axit 2-aminopropionic và amoni acrylat D) axit 2-aminopropionic và axit 3-aminopropionic o 4H9O2 X + NaOH Y + HCl (dư) Y + CH4O Z + NaCl A) H2NCH2CH2COOCH3 và CH3CH(NH3Cl)COOH B) CH3CH(NH2)COOCH3 và CH3CH(NH3Cl)COOH C) CH3CH(NH2)COOCH3 và CH3CH(NH2)COOH D) H2NCH2COOC2H5 và ClH3NCH2COOH... CH3CH(NH2)COOCH3 và CH3CH(NH2)COOH D) H2NCH2COOC2H5 và ClH3NCH2COOH htttp://tuhoc.edu.vn/blog 11 www.tuhoc.edu.vn C u C u C u 1 B I B Z C 2 B J C a C 3 D K D b D 4 B L D c A 5 D M A d C 6 D N C e C O B f D 7 8 A P D g D 9 A Q C h D R D i C A B B S C j B C B T C k A D B U C l D E B V B m C F D W D n B G A X C o B H C Y D htttp://tuhoc.edu.vn/blog 12