下列实验中，反应速率增大是由催化剂引起的是_刷题宝

题干

下列实验中，反应速率增大是由催化剂引起的是（　　）

A：双氧水中加入少量MnO₂，即可迅速放出气体

B：锌与稀硫酸反应中加入少量CuSO₄溶液，反应放出H₂的速率加快

C：固态FeCl₃和固体NaOH混合后，加入水能迅速产生沉淀

D：在炭粉中加入KClO₃，点燃时燃烧更为剧烈

上一题下一题 0.0难度选择题更新时间:2018-08-31 04:21:27

答案(点此获取答案解析）

A

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