ABC26PH0067 · Electrochemistry
Subject: Physical Chemistry · Chapter: Electrochemistry · Topic: Electrochemistry – General · Exam: CSIR-NET DEC 2016 · Marks: 2 · Difficulty: Hard
Given \[ \text{(i)}\ \mathrm{Zn+4NH_3 \rightarrow Zn(NH_3)_4^{2+}+2e}, \quad E^{o}=1.03\,\mathrm{V} \]
\[ \text{(ii)}\ \mathrm{Zn \rightarrow Zn^{2+}+2e}, \quad E^{o}=0.763\,\mathrm{V} \]
the formation constant of the complex $\mathrm{Zn(NH_3)_4^{2+}}$ is approximately (a)$1 \times 10^{5}$
(b)$1 \times 10^{7}$
(c)$1 \times 10^{9}$
(d)$1 \times 10^{12}$
Answer
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