A:CH3COOCH2CH3,乙酸乙酯 B:CH3COONa,乙酸钠 C:CH3CH2OH,乙醇 D:CH3COOH,乙酸 E:CH3CHO,乙醛 F:C2H4,乙烯 CH3COOCH2CH3+NaOH——CH3COONa+CH3CH2OH(取代,水解) 2CH3CH2OH+O2——Cu-加热——2CH3CHO+2H2O(催化氧化) CH3CHO+2Cu(OH)2——Cu2O+CH3COOH+2H2O(氧化)