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MCQMediumJEE Main 2026 · 21 January, Shift 1Aromatic Compounds & Benzene

Chemistry Question from JEE Main 2026 · 21 January, Shift 1

Identify A in the following reaction.

Reaction scheme showing unknown A giving decalin on hydrogenation with 2H2 and Pt, and giving a cyclohexane dicarboxylic acid plus oxalic acid on oxidation with KMnO4 and heat.
  • A
    Fused bicyclic ring structure with one double bond in the left ring and one double bond in the right ring, both at outer edges.
  • B
    Fused bicyclic ring structure with two double bonds located in the right ring, representing an aromaticity-reduced naphthalene isomer.
  • C
    Fused bicyclic ring structure with one double bond in the left ring and one double bond in the right ring in a different positional arrangement.
  • D
    Fused bicyclic ring structure with one double bond at the ring junction side and one double bond at the lower left outer edge.

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