Solve this following


In view of the signs of $\Delta_{r} G^{\circ}$ for the following reactions

$\mathrm{PbO}_{2}+\mathrm{Pb} \rightarrow 2 \mathrm{PbO}, \Delta_{\mathrm{r}} \mathrm{G}^{\circ}<0$

$\mathrm{SnO}_{2}+\mathrm{Sn} \rightarrow 2 \mathrm{SnO}, \Delta_{\mathrm{r}} \mathrm{G}^{\circ}>0$

Which oxidation states are more characteristic for lead and tin ?

  1. For lead $+4$, for tin $+2$

  2. For lead $+2$, for tin $+2$

  3. For lead $+4$, for tin $+4$

  4. For lead $+2$, for tin $+4$

Correct Option: , 4


Solution not required

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