JEE Main Chemistry question

Which one shows most pronounced inert pair effect?

(A)Si
(B)Sn
(C)PbCorrect
(D)C

Answer: (C)

Solution

The inert pair effect (reluctance of the outer electron pair to participate in bonding) increases down group 14, being negligible for C and Si, moderate for Sn, and strongest for Pb,

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Question ID VK-138217