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NTA Abhyas JEE Main2020ChemistryGeneral Organic ChemistryPractice

Which of the following will exhibit aromatic character?

Options

  1. AI, III
  2. BIII, IV
  3. CII, IV
  4. DII, III

Correct answer

C. II, IV

Step-by-step solution

Since in azulene (IV) two rings share a double bond, therefore, two electrons of this double bond can be counted towards each. As a result, each ring has 6 π -electrons and hence azulene is aromatic. Pyrrole (II), the two double bonds + one lone pair of electrons on the N atom).

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