本题目来源于试卷: Mechanisms of Chemical Change F.2 Electron Transfer Reactions,类别为 IB化学
[单选题]
Which statements are correct about 3pq(cihrorb*vh e2x*f /: 1vxj mh 2.dan electrolyti (/ e5be16c/j rtgntehc cell?
I. An external power supply is used to drive a non-spontaneous process
II.Oxidation occurs at the positive electrode in the cell
III.The cell could be used to extract a reactive metal from its molten salt
A. I and II only
B. I and III only
C. II and III only
D. I, II and III
参考答案: D
本题详细解析:
Non-spontaneous reactions t * b 7ismxb1q s-y7sgdl2t7kjlit*sju+v3b9(ake place in electrolytic cells using an external pow s3ltuvks(2 m97ql -b sg*ibs di71 bj+y*xt7jer supply.
The positive electrode is the anode where oxidation takes place.
The aqueous metal ion $M^{x+}$ is reduced at the cathode to produce the solid metal.
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