Incorrect order of stability of cation is : (a) \( \mathrm{Ge}^{2+}\mathrm{Sn}^{2+}\mathrm{Pb}^{...

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Incorrect order of stability of cation is :
(a) \( \mathrm{Ge}^{2+}\mathrm{Sn}^{2+}\mathrm{Pb}^{2+} \)
(b) \( \mathrm{Ge}^{4+}\mathrm{Sn}^{4+}\mathrm{Pb}^{4+} \)
\( \mathrm{P} \)
(c) \( \mathrm{Sn}^{2+}\mathrm{Sn}^{4+} \)
(d) \( \mathrm{Pb}^{4+}\mathrm{Pb}^{2+} \)
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