实验室进行NaCl溶液蒸发时，一般有以下操作过程，其正确的操作顺序为①放置酒精灯②固定铁圈位置③放上蒸发皿④加热搅拌⑤停止加热、余热蒸干_刷题宝

题干

实验室进行NaCl溶液蒸发时，一般有以下操作过程，其正确的操作顺序为
①放置酒精灯 ②固定铁圈位置 ③放上蒸发皿
④加热搅拌 ⑤停止加热、余热蒸干

A：③②①④⑤

B：①②③④⑤

C：②③①④⑤

D：②①③④⑤

上一题下一题 0.0难度选择题更新时间:2020-02-21 04:23:24

答案(点此获取答案解析）

B

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