... phn ng cú lng A (m - 5,05) gam B (m + 6,6) gam C (m - 11,65) gam D (m - 3,25) gam Cõu 41: Trong hp cht sau õy cú my liờn kt peptit? H2N-CH2-CO-NH-CH-CO-NH-CH-CO-NH-CH2-CH2-COOH CH3 C6H5 A B C ... cỏc hp cht: HCl, KClO3, HClO, HClO2, HClO4 ln lt l: A +1, +5, -1 , +3, +7 B -1 , +5, +1, -3 , -7 C -1 , +5, +1, +3, +7 D -1 , -5 , -1 , -3 , -7 Cõu 50: ng vi cụng thc C3H8On cú bao nhiờu ng phõn ch cha ... gc -aminoaxit cú s liờn kt peptit bng n C Khụng th dựng Cu(OH)2 phõn bit dung dch tripeptit v dung dch CH 3COOH D Trong phõn t peptit mch h cha n gc -aminoaxit cú s liờn kt peptit bng n-1 Cõu...