A.鄰硝基苯甲酸 B.間硝基苯甲酸 C.對硝基苯甲酸 D.間硝基甲苯
A.-N+R3>-NO2>-SO3H>-COOH B.-COOH>-NO2>-SO3H>-N+R3 C.-NO2>-SO3H>-COOH>-N+R3 D.-SO3H>-NO2>-COOH>-N+R3
A.-OH>-OR>-R>-X B.-X>-OH>-OR>-R C.-R>-X>-OH>-OR D.-OR>-OH>-R>-X