1.

Assertion: Nitrobenzene is used as a solvent in Friedel-Crafts reaction. Reason: Fusion of nitrobenzene with solid KOH gives a low yield of a mixture of o- and p-nitrophenols.

Answer»

If both assertion and reason are true, and reason is the true explanation of the assertion.
If both assertion and reason are TURE, but reason is not the true explanation of the assertion.
If assertion is true, but reason is false.
If both assertion and reason are false.

Solution :CORRECT explanation: DUE to strong electron-withdrawing resonance and inductive effect of the `-NO_(2)` group, electron density decreases in the benzene ring and HENCE it does not undergo F.C. benzene ring and hence it does not undergo F.C. REACTION.


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