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氯及其化合物

> 见下图（A）处通入Cl 2，当关闭（B）阀时，（C）处的湿润的红布条没有明显变化，当打开（B）阀时，（C）处的湿润红布条逐渐褪色，则（D）瓶中装的溶液是 A．浓H 2SO 4 B．NaOH溶液  C．水 D．饱和食盐水

问题：

发布时间：2024-09-13

见下图（A）处通入Cl ₂，当关闭（B）阀时，（C）处的湿润的红布条没有明显变化，当打开（B）阀时，（C）处的湿润红布条逐渐褪色，则（D）瓶中装的溶液是

A．浓H ₂SO ₄ B．NaOH溶液  C．水 D．饱和食盐水

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