下列说法正确的是                                 

下列说法正确的是                                                                 

    AcH+>cOH)的溶液一定显酸性

    B.常温下,pH=6的溶液一定是酸溶液

    C.电解稀硫酸或氢氧化钠溶液的产物不同

    D.水电解生成氢气和氧气,证明水是弱电解质

答案

A

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