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氯及其化合物

> 下列说法正确的是 A．向久置的氯水中滴入紫色石蕊试液，溶液将先变红后褪色 B．欲除去氯气中少量氯化氢气体，可将此混合气体通过盛饱和食盐水的洗气瓶 C．漂白粉的有效成分是CaCl2和Ca（ClO）2，应密封保存 D．氯水经光照有气泡逸出，该气体为HCl

问题：

发布时间：2024-09-10

下列说法正确的是

A．向久置的氯水中滴入紫色石蕊试液，溶液将先变红后褪色

B．欲除去氯气中少量氯化氢气体，可将此混合气体通过盛饱和食盐水的洗气瓶

C．漂白粉的有效成分是CaCl₂和Ca（ClO）₂，应密封保存

D．氯水经光照有气泡逸出，该气体为HCl

参考答案：

提问用户：1E***r5I

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