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 about the electrolysis of molbla s, -l4qz1oten aluminium oxide are co e f6vy6j5ltf0jc9qn 3rrect?
I. Aluminium ions gain electrons at the cathode
II. Oxide ions lose electrons at the cathode
III. The cathode is the site of reduction in this cell
A. I and II only
B. I and III only
C. II and III only
D. I, II, and III
参考答案: B
本题详细解析:
Cathode site of reduction, anode site of oxidation, use CROA to remember this. Reduction is the gain of electrons.
|