都是氧化成乙酸CH3COOH5CH3CH2OH+4KMnO4+6H2SO4==5CH3COOH+4MnSO4+2K2SO4+11H2O K2Cr2O7 + 8H2SO4 + 3CH3CH2OH = 3 CH3COOH + 2 Cr2(SO4)3 + 11 H2O + 2 K2SO4