Question

Which of the following compounds will not undergo Friedel-Craft's reaction easily?

• A. Xylene
• B. Nitrobenzene
• C. Toluene
• D. Cumene

Answer 1

Answer: (B)

As any aromatic compound with meta directing group don't show Freidal Craft's reaction easily.
So, nitrobenzene does not show it as in it ${\text{-NO}}_2$ group is ring deactivating and meta directing. In rest other compounds given here alkyl group is ring activating and ortho, para directing so this reaction is possible.