Same chapter3 marksDifficulty: Medium
What is the Wurtz reaction, and state its main limitation.
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3 marksDifficulty: Medium
Why is benzene unusually stable and why does it prefer substitution to addition?
Original Khojo Papers practice question — not from a past board paper.
Answer
The six pi electrons of benzene are completely delocalised over the ring, which lowers the energy of the molecule by the resonance energy and makes it exceptionally stable. An addition reaction would destroy that delocalised system, whereas substitution preserves it, so benzene undergoes electrophilic substitution in preference to addition.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
This is what is meant by aromatic character.
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