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 following reactka5vlnqe ;:o ..v0ilkhn:z*s2z kl9l x* d-d7 sjs1 dhions:
$Fe(s) + Cu^{2+}(aq) \rightarrow Fe^{2+}(aq) + Cu(s)$
$Fe(s) + 2Ag^+(aq) \rightarrow Fe^{2+}(aq) + 2Ag(s)$
$Zn(s) + Fe^{2+}(aq) \rightarrow Zn^{2+}(aq) + Fe(s)$
$Cu(s) + 2Ag^+(aq) \rightarrow Cu^{2+}(aq) + 2Ag(s)$
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 displaces Cu and k fibn ; h39mtil/hhzs6 +9psxc-2bisw,6j)iAg. Zn displaces Fe. Therefore, Zn is the most reactive.
Cations gain electrons and get reduced (oxidizing agef9m 6jn2htbiibi/is+96z-lsh3 kxh pw; ,c )snt).
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