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氯及其化合物

> 下列说法正确的是 A．氯气中含有少量的氯化氢，可以用NaOH溶液除去 B．漂白粉的有效成分是CaCl2和Ca(ClO)2 C．潮湿的氯气可用浓硫酸进行干燥 D．实验室制取氯气时可用向上排空气法收集

问题：

发布时间：2024-09-09

下列说法正确的是

A．氯气中含有少量的氯化氢，可以用NaOH溶液除去

B．漂白粉的有效成分是CaCl₂和Ca(ClO)₂

C．潮湿的氯气可用浓硫酸进行干燥

D．实验室制取氯气时可用向上排空气法收集

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