题目:
已知酸性:HCOOH>CH3COOH>C6H5OH,判断相同物质的量浓度的下列溶液的碱性最弱的是 [ ]
A. C6H5ONa
B. CH3COONa
C. HCOONa
D. NaOH溶液
答案:
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