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What structure represents the most stable conformation of cis-1,3-difluorocyclohexane?

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Correct Answer: B. B
In 1,3-disubstituted cyclohexanes both groups can adopt equatorial positions in the stable chair conformation if the groups are cis-. This is favored as equatorial groups have more space than in the axial positions, where torsional strain factors come into consideration.
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