Chemistry - Electrochemistry Question with Solution | TestHub

Given that ${\mathrm{E}}_{{\mathrm{Ni}}^{2+}\mid \mathrm{Ni}}^{\mathrm{o}}=0.25\mathrm{V},{\mathrm{E}}_{{\mathrm{Cu}}^{2+}\mid \mathrm{Cu}}^{\mathrm{o}}=0.34\mathrm{V},{\mathrm{E}}_{{\mathrm{Ag}}^{+}\mid \mathrm{Ag}}^{\mathrm{o}}=0.8\mathrm{V}$ and ${\mathrm{E}}_{{\mathrm{Zn}}^{2+}\mid \mathrm{Zn}}^{\mathrm{o}}=-0.76\mathrm{V}$.

Which of the following reactions under standard condition will not take place in the specified direction?