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GK QUESTION#3260

Assertion (A): Azulene is classified as a non-benzenoid aromatic compound. Reason (R): Non-benzenoid compounds contain fused benzene rings in their structure.

  1. AA is true, but R is falseCorrect answer
  2. BBoth A and R are true, and R is the correct explanation of A
  3. CBoth A and R are true, but R is not the correct explanation of A
  4. DBoth A and R are false
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Answer

A. A is true, but R is false

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Explanation

Azulene is an aromatic hydrocarbon whose fused five- and seven-membered rings form a conjugated 10π-electron system. It contains no benzene ring and is therefore non-benzenoid. The assertion is true; the reason incorrectly assigns fused benzene rings to non-benzenoid aromatic compounds.

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