Which of the following is the IUPAC name for the following compound?

Question

Quizplus · Accepted Answer

The longest carbon chain in the compound is five carbons, so the parent chain name is pentene. The double bond is located between carbons 2 and 3, so the name must include 2-pentene. There are two methyl groups on carbon 2 and one ethyl group on carbon 3, giving the name 3-ethyl-2,4-dimethyl-2-pentene. Option A has an incorrect number of methyl groups and an extra ethyl group. Option C only accounts for two of the three substituent groups on the pentene. Option D has the wrong location for the ethyl group.

Which of the Following Is the IUPAC Name for the Following