NEET | 2017Atomic StructureHard

Question

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

Options

A.

Sn2+ is oxidising while Pb4+ is reducing

B.

Sn2+ and Pb2+ are both oxidising and reducing

C.

Sn4+ is reducing while Pb4+ is oxidising

D.

Sn2+ is reducing while Pb4+ is oxidising

Solution

Sn+2 → Sn+4
(R.A)       Sn+2 < Sn+4 Stability order
Pb+4 →  Pb+2
(O.A)       Pb+2 > Pb+4 Stability order
               (Inert pair effect)

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