下列有关说法正确的是( ) A.合成氨反应需使用催化剂,说明催化

下列有关说法正确的是(  )

A.合成氨反应需使用催化剂,说明催化剂可以促进该平衡向生成氨的方向移动

B.铅蓄电池在放电过程中,负极质量增加,正极质量减少

C. 100 mL pH=3HA溶液、HB溶液分别与足量的锌反应,HA溶液放出的氢气多,说明HA的酸性比HB的弱

D. 已知I3I2+I,向盛有KI3溶液的试管中加入适量CCl4,振荡静置后CCl4层显紫色,说明KI3CCl4中的溶解度比在水中的大

答案

C

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