摘要:下列四个反应中.与其它三个反应类型不同的是( ) A.CH3CHO+2Cu(OH)2 → CH3COOH+Cu2O↓+2H2O B.CH3CHO+2Ag(NH3)2OH → CH3COONH4+2Ag↓+3NH3+H2O C.CH3CHO+H2 → CH3CH2OH D.CH3CHO+CuO → CH3COOH+Cu [解析]A.B.D都是-CHO被氧化.C为-CHO的加成. [答案]C

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