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

1. Xylene
2. Nitrobenzene
3. Toluene
4. Cumene

Correct answer: Nitrobenzene

Solution

Nitrobenzene does not undergo Friedel-Craft's reaction easily because the nitro group is an electron-withdrawing group, which deactivates the benzene ring towards electrophilic substitution reactions.

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