Question Detail

CHM 101 CHM 101 Past Questions Objective Question
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Question

The IUPAC name for the compound with the structure (CH₃)₂C=CHCH₂CH₃ is:
Options
A 2-methylpent-2-ene
Correct Answer
B 4-methylpent-3-ene
C 2-methylpent-3-ene
D 2-methylpent-1-ene
Correct Answer

Option A is the correct answer.

Detailed Explanation

The longest chain containing the double bond is 5 carbons (pentene). Numbering gives the double bond the lowest number, so start from the end nearer the double bond. The double bond is between C2 and C3, with a methyl on C2, giving 2-methylpent-2-ene.

Hint

Always number the parent chain to give the double bond the lowest possible number.

Question Info

Course: CHM 101
Topic: CHM 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 1242 of 1872
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