Which of the following halides is the least stable?
A
CCl4
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B
GeI4
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C
SnI4
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D
PbI4
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Solution
The correct option is DPbI4 PbI4 is the least stable. It is due to inert pair effect, the stable oxidation state of lead is +2 because of which only +2 oxidation state compounds of Pb exists.