P-Block Elements Ques 182

Question: Which of the following halides is least stable and has doubtful existence

[IIT 1996]

Options:

A) $ CI_4 $

B) $ GeI_4 $

C) $ SnI_4 $

D) $ PbI_4 $

Show Answer

Answer:

Correct Answer: D

Solution:

$ PbI_4 $ is least stable because of two reasons (1) Size of iodine is biggest. (2) $ +2 $ oxidation state of Pb is more stable than $ +4 $ state because of inert pair effect.



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