JAMB Chemistry 2024 Question 6

Question 6

Introduction to Organic Chemistry

The organic compound above is

Diagram for this question
  1. A.2, 3-dimethylpent-2-ene
  2. B.2,3-dimethylpent-2,3-ene
  3. C.3,4-dimethyl
  4. D.3,4-dimethylpentene
Show the answer and explanation

Answer: A (2, 3-dimethylpent-2-ene)

Explanation

The longest chain has 5 carbons. Numbering from the end nearer the double bond puts the C=C at carbon 2 and the methyl groups on carbons 2 and 3: 2,3-dimethylpent-2-ene.