What is the correct IUPAC name for the following compound?

Question

Quizplus · Accepted Answer

The compound contains a cyclopentenone ring with two methyl groups attached at positions 2 and 4. The correct order of numbering the ring is to give priority to the carbonyl group, which is at position 2. Thus, the correct name is 2,4-dimethylcyclopent-2-enone. Choice A is incorrect because "pentenone" implies a five-carbon chain, which this compound does not have. Choice B is incorrect because the cyclopentene ring has five carbons, not six. Choice D is incorrect because it places the carbonyl group at position 5, which is incorrect. Choice E is incorrect because it uses redundant nomenclature by including the prefix "methyl" twice for the same group.

What Is the Correct IUPAC Name for the Following Compound