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JEE Main Chemistry question

ChemistryOrganic Chemistry - Some Basic Principles and TechniquesJEE Main

The enthalpy of hydrogenation of cyclohexene is . If the resonance energy of benzene is , its enthalpy of hydrogenation would be

Answer: (D)

Solution

A hypothetical (non-resonating) "cyclohexatriene" would have hydrogenation enthalpy . The actual benzene molecule is more stable

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Question ID VK-135272