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 abou3uimsbjwd)n 1 uea1f/ f;4c2;b4x ct it an el39:fsvx n,l kh9k3ttqjpv 0 z.ectrolytic 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 reactioc ;oz 1adm8ziyp ib( a;qz:7g5t1vs 6mns take place in electrolytic cells using an external power supply.
Thed 5s11m:aav 87zg 6 c oty;;biziq(mzp 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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