It is because of inability of ns2 electrons of the valence shell to participate in bonding that

Question

It is because of inability of ns² electrons of the valence shell to participate in bonding that

Sn²⁺ is oxidising while Pb⁴⁺ is reducing

Sn²⁺ and Pb²⁺ are both oxidising and reducing

Sn⁴⁺ is reducing while Pb⁴⁺ is oxidising

Sn²⁺ is reducing while Pb⁴⁺ is oxidising

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