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Mechanisms of Chemical Change F.2 Electron Transfer Reactions (id: 010b9063e)

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admin 发表于 2024-2-5 13:33:29 | 显示全部楼层 |阅读模式
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 row, indicated in the table below,1xrtt b3 0 rd9g ++snrubz0cw6 containvif8 o ;mw4aicq:6a4rs the correct species that are produced at each electrode during the electrolysis4:oa;v q8ifmcraw 6 i4 of molten zinc chloride?

A. Negative electrode (cathode) is Zn(s), Positive electrode (anode) is $Cl_2(g)$
B. Negative electrode (cathode) is $Zn^{2+}(I)$, Positive electrode (anode) is $Cl^-(I)$
C. Negative electrode (cathode) is $Cl^-(I)$, Positive electrode (anode) is $Zn^{2+}(I)$
D. Negative electrode (cathode) is $Cl_2(g)$, Positive electrode (anode) is Zn(s)


参考答案:  A


本题详细解析:
$Zn^{2+}(I)$ gains electrons and is reduced to Zn(s) at the cathode. $Cl^-(I)$ loses electrons and is oxidised to $Cl_2(g)$ at the anode.

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