A.CH3CH2NO2 B.CH3CH2NH2 C.CH3CONH2 D.CH3-N=N-CH3
A.CH3COCH2CH3 B.CH3COOCOCH3 C.CH3CH2OCH3 D.CH3COOCH3
A.CH3CHO B.CH3CH2COOH C.CH3CH2OH D.CH3COCH3