问题 选择题

以石墨为电极,电解500 mL NaCl溶液,当两极产生气体总体积为16.8 mL时(标准状况),溶液的pH范围是                                                                                                                                (   )

A.5~6

B.7~8

C.8~10

D.10~12

答案

答案:D

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