(a) If both assertion and reason are true and the reason is the correct explanation of the assertion of the assertion.
(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.
(c) If assertion is true but reason is false.
(d) If assertion is false but reason is true.
Q. Assertion: Nitrobenzene is used as a solvent in friedel-Craft's reaction.
Reason: Fusion of nitrobenzene with solid `KOH` gives a low yield of a mixture of o-and p-nitrophenols.

Answer

B

Explanation

Nitrobenzene is used as a solvent in Friedel-Craft's reaction because its `-NO_2` group deactivates benzene ring for electrophilic substitution. Although the given statement of the reason is correct, it is not correct explanation of the given statement.