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元素周期律

> 下列说法正确的是（） A．电解、电镀、电化学腐蚀都需要通电才可进行 B．Al、Fe、Cu三者对应的氧化物均为碱性氧化物 C．浓H2SO4和新制氯水分别滴在pH试纸上均会出现先变红后褪色的现象 D．从石油中得到汽油，可采用分馏的方法

问题：

发布时间：2024-09-11

下列说法正确的是（）

A．电解、电镀、电化学腐蚀都需要通电才可进行

B．Al、Fe、Cu三者对应的氧化物均为碱性氧化物

C．浓H₂SO₄和新制氯水分别滴在pH试纸上均会出现先变红后褪色的现象

D．从石油中得到汽油，可采用分馏的方法

参考答案：

提问用户：k3***5N4

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