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Q.

On changing N2 to N2+, the dissociation energy of N-N bond ..... and on changing O2 to O+2, the dissociation energy of O-O bond...

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a

decreases in both cases

b

increases in both cases

c

increases, decreases

d

decreases, increases

answer is B.

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Detailed Solution

On changing N2 to N2+ , B.O. decreases from 3 to 2.5 whereas on changing O2 to O2+ , B.O. increases from 2 to 2.5. In former case, the bond dissociation energy decreases and in the latter case, it increases.

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