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P Block Elements question

2017 · Q93
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P Block Elements question

2017 · Q93

NEETChemistryP Block ElementsMCQ+4 / −1
It is because of inability of ns2 electrons of the valence shell to participate in bonding that
  1. A
    Sn2+ is oxidising while Pb4+ is reducing
  2. B
    Sn2+ and Pb2+ are both oxidising and reducing
  3. C
    Sn4+ is reducing while Pb4+ is oxidising
  4. D
    Sn2+ is reducing while Pb4+ is oxidising
View written solutionFree

Correct answer: D

The inertness of s-subshell electrons towards bond formation is known as inert pair effect. This effect increases down the group thus, for Sn, +4 oxidation state is more stable, whereas, for Pb, +2 oxidation state is more stable, i.e., Sn2+ is reducing while Pb4+ is oxidising

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