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JEE Main · 2022 · 26 Jul 2022 · Shift 1 · General Organic Chemistry

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Which of the following compounds is not aromatic?
  1. (A)(see structure)
  2. (B)(see structure)
  3. (C)(see structure)
    ✓ Correct
  4. (D)(see structure)

Answer: (C)

Solution

[10] Annulene follows the (4n+2)π electron rule but is non-aromatic due to its non-planar nature. The non-planarity arises from repulsion between the C–H bonds present inside the ring, preventing the necessary overlap for aromaticity. Therefore, option (C) is not aromatic.

JEE Main · 2022 · 26 Jul 2022 · Shift 1 · Single correct option

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