The element exhibiting most stable + ,2 oxid | vedclass

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Question

$Ag$ has the electronic configuration $[ Kr ] \,4 d ^{10} \,5 s ^1$ Hence $+1$ is a stable oxidation state for it.

$Fe ^{3+}$ ion is more stable du

Vedclass · Accepted Answer

$Pb$

Vedclass · Answer

$Ag$ has the electronic configuration $[ Kr ] \,4 d ^{10} \,5 s ^1$ Hence $+1$ is a stable oxidation state for it.

$Fe ^{3+}$ ion is more stable due to its half-filled $3 d ^5$ electron configuration. As half filled and completely filled shells are more stable $Fe ^{3+}$ ion is more stable than $Fe ^{2+}$

The $Sn ^{2+}$ ions convert to $Sn ^{4+}$ ions because the tin$(IV)$ oxidation state is more stable than tin$(II)$.

In non-transition elements of p-block, lower oxidation state is more stable due to inert pair effect e.g., $Pb ^{2+}$ is more stable than $Pb ^{4+}$

The element exhibiting most stable $ + \,2$ oxidation state among the following is

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