At 298 K, the standard electrode potentials of Cu^2+ / Cu, Zn^2+ / Zn, Fe^2+ / Fe and Ag^+ / Ag are 0.34 V, -0.76 V,-0.44 V and 0.80 V, respectively.…

At $\displaystyle 298$ K , the standard electrode potentials of $\displaystyle \mathrm{Cu}^{2+} /$ $\displaystyle \mathrm{Cu}, \mathrm{Zn}^{2+} / \mathrm{Zn}, \mathrm{Fe}^{2+} / \mathrm{Fe}$ and $\displaystyle \mathrm{Ag}^{+} / \mathrm{Ag}$ are $\displaystyle 0.34$ V, $\displaystyle -0.76 \mathrm{~V},-0.44 \mathrm{~V}$ and $\displaystyle 0.80$ V , respectively. On the basis of standard electrode potential, predict which of the following reaction can not occur ?