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Assertion (A): The stability of +5 oxidation state decreases and that of +3 state increases down the 15th group
Reason (R): It is due to inert pair effect.

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Both R & A are true, R is correct explanation of A.

A is true, R is false.

Both R & A are true, R is not correct explanation of A.

A is false, R is true.

answer is A.

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Detailed Solution

It is due to inert pair effect.

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