Question:medium

Which of the following isomer of 1, 2-cyclohexanedicarboxylic acid forms an hydride on heating?

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In organic synthesis, heating dicarboxylic acids with suitable conditions often leads to intramolecular dehydration, forming cyclic anhydrides.
Updated On: Feb 10, 2026
  • Fig 1
  • Fig 2
  • Fig 3
  • Reaction not possible
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The Correct Option is B

Solution and Explanation

Heating 1, 2-cyclohexanedicarboxylic acid isomers can cause dehydration, resulting in cyclic anhydride formation. This reaction involves water elimination between the two carboxyl groups. Specifically, Isomer 2 yields the anhydride product when heated.
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