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]
Consider the followin8r y13r*p neggw xla)8if uz7;g react8kz *up 5v7* qf9qiieuions:
$Fe(s) + Cu^{2+}(aq) \rightarrow Fe^{2+}(aq) + Cu(s)$
$Fe(s) + 2Ag^+(aq) \rightarrow Fe^{2+}(aq) + 2Ag(s)$
$Zn(s) + Fe^{2+}(aq) \rightarrow Zn^{2+}(aq) + Fe(s)$
$Cu(s) + 2Ag^+(aq) \rightarrow Cu^{2+}(aq) + 2Ag(s)$
A. Strongest reducing agent is Zn(s) Strongest oxidizing agent is Ag(s)
B. Strongest reducing agent is Zn(s) Strongest oxidizing agent is $Ag^+(aq)$
C. Strongest reducing agent is Ag(s) Strongest oxidizing agent is $Zn^{2+}(aq)$
D. Strongest reducing agent is $Ag^+(aq)$ Strongest oxidizing agent is Zn(s)
参考答案: B
本题详细解析:
Most reactive metal is the strongest reducing agent. Fe displac kb 923iwdwmq9es Cu and Ag. Zn diqwm9wk 923ibd splaces Fe. Therefore, Zn is the most reactive.
Cations gain electrons and get reduced (oxidizing agent).
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