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氯及其化合物

> 下列实验现象和结论一致，正确的是 A．常温下，Cu片投入到浓硫酸中不反应，说明浓硫酸使Cu产生钝化现象 B．氯水溶液呈黄绿色，有刺激性气味，说明有Cl2存在 C．氯水加入盐酸酸化的AgNO3溶液产生白色沉淀，说明有Cl－存在 D．将一支用排空收集SO2的试管倒放在足量的水中，试管内仍有气体，说明SO2微溶于水

问题：

发布时间：2024-09-10

下列实验现象和结论一致，正确的是

A．常温下，Cu片投入到浓硫酸中不反应，说明浓硫酸使Cu产生钝化现象

B．氯水溶液呈黄绿色，有刺激性气味，说明有Cl₂存在

C．氯水加入盐酸酸化的AgNO₃溶液产生白色沉淀，说明有Cl^－存在

D．将一支用排空收集SO₂的试管倒放在足量的水中，试管内仍有气体，说明SO₂微溶于水

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