试题与答案

利用电解法可将含有Fe、Zn、Ag、Pt等杂质的粗铜提纯,下列叙述正确的是 [

题型:选择题

题目:

利用电解法可将含有Fe、Zn、Ag、Pt等杂质的粗铜提纯,下列叙述正确的是 [ ]

A.电解时以精铜作阳极

B.电解时阴极发生氧化反应

C.粗铜连接电源负极,其电极反应是Cu =Cu2+ + 2e-

D.电解后,电解槽底部会形成含少量Ag、Pt等金属的阳极泥

答案:

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参考答案:对

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