It is noticed that $\mathrm{Pb}^{2+}$ is more stable than $\mathrm{Pb}^{4+}$ but $\mathrm{Sn}^{2+}$

Question

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

Professor PC Thomas Classes · Answer

See detailed solution for explanation.