用无水硫酸镁干燥液体产品时，下面说法不对的是 -题库考试答案搜索网

用无水硫酸镁干燥液体产品时，下面说法不对的是

单选题

2021-09-02 00:02

A、用无水硫酸镁干燥液体产品时，下面说法不对的是
B、干燥剂的用量可视粗产品的多少和混浊程度而定，用量过多，由于MgSO4 干燥剂的表面吸附，会使产品损失；
C、用量过少，则 MgSO4 便会溶解在所吸附的水中；
D、一般干燥剂用量以摇动锥形瓶时，干燥剂可在瓶底自由移动，一段时间后溶液澄清为宜。

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正确答案

A

试题解析

标签：联大河南理工大学有机化学实验

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