向紫色石蕊试液中加入过量的过氧化钠粉末,振荡,正确的叙述是A

向紫色石蕊试液中加入过量的过氧化钠粉末,振荡,正确的叙述是

A.溶液为紫色                  B.最后溶液变为蓝色

C.最后溶液褪色                D.有气泡产生

 

答案

CD

解析:

 

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