Which of the following is not a derivative of benzene?
Correct answer: D. All of these
- A. Pyrrole
- B. Furan
- C. Thiophene
- D. All of these
Explanation
Pyrrole, Furan, and Thiophene are NOT derivatives of benzene because:Benzene is a six-membered carbocyclic (carbon-only) aromatic ring.These compounds are five-membered heterocyclic aromatic rings - containing a heteroatom (N, O, S) in the ring.They do NOT have the benzene (C₆H₆) structure or any direct substitution on a benzene ring.
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About Alcohols and Phenols
Alcohols are classified as primary, secondary or tertiary and studied through their hydrogen bonding, acidity, oxidation and reactions with active metals, acids and halogenating agents. Phenols require separate treatment because the hydroxyl group is attached to an aromatic ring, making their acidity and electrophilic substitution different from ordinary alcohols.
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