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NEET levelSingle correct optionDifficulty 1 of 3nm030

What is the IUPAC name of the compound consisting of a cyclohexane ring with a methyl group on each of two adjacent ring carbons?

  1. A2,3-dimethylcyclohexane
  2. B1,6-dimethylcyclohexane
  3. C1,3-dimethylcyclohexane
  4. D1,2-dimethylcyclohexane

Answer: D

The ring is the parent, and the lowest locant set for the two methyl groups is chosen. Adjacent carbons can be numbered 1 and 2, which is lower than 1,6 or 2,3. The name is 1,2-dimethylcyclohexane.
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