NEET Chemistry The p-Block Elements (XII) Questions Solved

NEET - 2017

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

(a) Sn2+ is reducing while Pb4+ is oxidising agent

(b) Sn2+ is oxidising while Pb4+ is reducing agent

(c) Sn2+ and Pb2+ are both oxidising and reducing agent

(d) Sn4+ is reducing while Pb4+ is oxidising agent

(b) The inability of ns2 electrons of the valence shell to participate in bonding is called as inert pair effect. Due to this effect, the lower oxidation state becomes more stable on descending the group. Thus, Sn2+ is a reducing agent while Pb4+ act as an oxidising agent.

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