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Question: Answered & Verified by Expert
Among the following the most stable compound is
ChemistryGeneral Organic ChemistryAIIMSAIIMS 2005
Options:
  • A cis-1,2-cyclohexanediol
  • B trans-1,2-cyclohexanediol
  • C cis-1,3-cyclohexanadiol
  • D trans-1,3-cyclohexanediol.
Solution:
2930 Upvotes Verified Answer
The correct answer is: trans-1,3-cyclohexanediol.
Trans configuration is more stable than cis configuration because in cis-configuration the $\mathrm{H}$ groups are thrown closely enough together to cause crowding or repulsion. Again between 1,2-and 1,3configurations, in 1-3, the $\mathrm{OH}$ groups are placed further appart to minimise the repulsion. Hence, more stable is 1,3-configuration.

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