... thu c 2, 25 gam H2O ; 6, 72 lớt CO2 v 0 ,56 lớt N2 (kc) Phn trm lng ca C, H, N v O X ln lt l: A 49 ,5% ; 9,8% ; 15, 5% ; 25 , 2% B 48,9% ; 15, 8% ; 35, 3% ; 0% C .59 ,1 % ; 17,4% ; 23 ,5% ; 0% D 58 ,5% ; 4,1% ... CH3OH, H2O, C2H5OH A CH3OH, C2H5OH, H2O B H2O,CH3OH, C2H5OH C CH3OH, H2O,C2H5OH D H2O, C2H5OH,CH3OH Cõu 10 Ancol no n chc mch h bc mt cú cụng thc chung l: A CnH2n+1OH n B CnH2n-1 CH2OH n C CnH2n+1CH2OH ... CF2Cl2 dựng mỏy lnh Cõu Cho 0, 92 gam mt hn hp gm C2H2 v CH3CHO tỏc dng va vi Ag2O dung dch NH3 thu c 5, 64 gam hn hp rn Phn trm lng ca C2H2 v CH3CHO tng ng l A 27 , 95% v 72, 05% B 25 , 73% v 74 ,27 %...