Subject: Physical Chemistry · Chapter: Electrochemistry · Topic: Electrochemistry – General · Exam: NET DEC 2016 · Marks: 2 · Difficulty: Medium
Given : (i) $\mathrm{Zn}+4 \mathrm{NH}_{3} \rightarrow \mathrm{Zn}\left(\mathrm{NH}_{3}\right)_{4}{ }^{2+}+2 \mathrm{e}, \mathrm{E}^{0}=1.03 \mathrm{V}$ (ii) $\mathrm{Zn} \rightarrow \mathrm{Zn}^{2+}+2 \mathrm{e}, \mathrm{E}^{\circ}=0.763 \mathrm{V}$ the formation of the complex $\mathrm{Zn}\left(\mathrm{NH}_{3}\right)_{4}{ }^{2+}$ is approximately