1.

Assertion : bond dissociation energy of N-F bond in NF_(3) molecule is lower than that of in NCl_(3) molecule. Reason : Interelectronic repulsion exists between small size N and F atoms N-F bond of NF_(2) molecule.

Answer»

If ASSERTION is TRUE but the REASON is false
If assertion is false but reason is true
If both assertion and reason are true and the reason is the correct EXPLANATION of assertion
If both assertion and reason are true and the reason is not the correct explanation of assertion

Answer :B


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