Question

Pyridine does not undergo Friedel-Craft's reaction .
If true enter 1 else 0.

• A. 1

Answer 1

The correct option is A 1
The Lewis acids ${AlCl}_3$ or ${FeCl}_3$, used as catalyst in Friedel - Craft's reaction coordinate with nitrogen of the pyridine through lone pair of electrons and form a complex. The +ve charge on N greatly diminishes the reactivity towards electrophilic substitution.
Hence, pyridine does not undergo Friedel-Craft's reaction.