NEET
- Exam
- NEET
- Subject
- Chemistry
- Chapter
- Carboxylic Acid Derivatives
NEET · Chemistry · Carboxylic Acid Derivatives
Assertion: Benzoic acid does not undergo Freidel Crafts reaction....
Assertion: Benzoic acid does not undergo Freidel Crafts reaction.
Reason: The carboxyl group in benzoic acid donates electrons into the ring through resonance.
Options
- ABoth assertion and reason are correct statements, and reason is the correct explanation of the assertion.
- BBoth assertion and reason are correct statements, but reason is not the correct explanation of the assertion.
- CAssertion is correct, but reason is wrong statement.
- DAssertion is wrong, but reason is correct statement.
Correct answer
C. Assertion is correct, but reason is wrong statement.
Step-by-step solution
Why:
- Benzoic acid doesn't undergo Friedel-Crafts (alkylation/acylation) because the -COOH group is strongly deactivating: it withdraws electrons by -M (resonance) and -I (inductive) effects and also complexes with (\mathrm{AlCl}_3), killing the ring's reactivity.
- The reason given is false:-COOH does not donate electrons into the ring; it withdraws them.