It is noticed that Pb^2+ is more stable than Pb^4+ but Sn^2+ is less stable than Sn^4+. Observe the following reactions. PbO_2+ Pb → 2 PbO; Δ_r…

It is noticed that $\displaystyle \mathrm{Pb}^{2+}$ is more stable than $\displaystyle \mathrm{Pb}^{4+}$ but $\displaystyle \mathrm{Sn}^{2+}$ is less stable than $\displaystyle \mathrm{Sn}^{4+}$. Observe the following reactions. $$\begin{aligned} & \mathrm{PbO}_2+\mathrm{Pb} \rightarrow 2 \mathrm{PbO} ; \Delta_{\mathrm{r}} \mathrm{G}^{\circ}(1) \\ & \mathrm{SnO}_2+\mathrm{Sn} \rightarrow 2 \mathrm{SnO} ; \Delta_{\mathrm{r}} \mathrm{G}^{\circ}(2) \end{aligned} $$ Identify the correct set from the following