在不用指示剂的条件下，欲将含有盐酸的氯化钙溶液由酸性转化为中

在不用指示剂的条件下，欲将含有盐酸的氯化钙溶液由酸性转化为中性，且不混入其它杂质，应选用的试剂是（　　）

A、澄清石灰水 B、氧化钠 C、石灰石粉末 D、生石灰粉末

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在不用指示剂的条件下，欲将含有盐酸的氯化钙溶液由酸性转化为中

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