Which of the following elements shows a stabl | vedclass

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(C) In group $14$ elements,the stability of the $+2$ oxidation state increases down the group due to the inert pair effect.Carbon and silicon show $+4

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$Pb$

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(C) In group $14$ elements,the stability of the $+2$ oxidation state increases down the group due to the inert pair effect.Carbon and silicon show $+4$ as the most stable oxidation state.Germanium shows both $+2$ and $+4$,but $+4$ is more stable.Tin $(Sn)$ shows both $+2$ and $+4$,with $+4$ being more stable.Lead $(Pb)$ shows both $+2$ and $+4$,but due to the inert pair effect,the $+2$ oxidation state is more stable than the $+4$ oxidation state.

Which of the following elements shows a stable $+2$ oxidation state?

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