常温时,以下4种溶液pH最小的是(      )                

常温时,以下4种溶液pH最小的是(                                  

A0.01molL-1醋酸溶液

B0.02molL-1醋酸与0.02molL-1NaOH溶液等体积混合液

C0.03molL-1醋酸与0.01molL-1NaOH溶液等体积混合液

DpH = 2的盐酸与pH = 12NaOH溶液等体积混合液

答案

A

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