Mechanisms of Chemical Change F.2 Electron Transfer Reactions (id: 5ec68887c)

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]
The diagram below shows a77coxxiyrh1t)7j84; n qhbfu Daniel ctt-e(l 6phkz3ell. Zinc is more reactive than copper. When the cell is operating, which statement about the ions in the cell is c(pzte3- 6klh torrect?

A. Positive ions in the salt bridge diffuse into the copper half cell
B. Positive ions in the salt bridge diffuse into the zinc half cell
C. $Zn^{2+}(aq)$ ions are deposited at the zinc electrode as Zn(s)
D. he concentration of $Cu^{2+}(aq)$ ions increases in the copper half cell


参考答案:  A


本题详细解析:
The positive ions (cations) move in the direction of the cathodl 9 yj7.-di4zcpga9vze as the positive gvilz .y-49 az7c9 jdp$Cu^{2+}$ ions are used up. Zn being more reactive than copper, Zn(s) is the anode where oxidation occurs, and Cu(s) is the cathode where reduction of $Cu^{2+}(aq)$ occurs.

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