Question

An optically active alkene with the M.F. $\mathrm{C}_6\mathrm{H}_{12}$ which upon hydrogenation gives optically inactive alkane is

• A. 2-hexene
• B. 3-methyl-2-pentene
• C. 2-methyl-2-pentene
• D. 3-methyl-1-pentene

Hint:

Hydrogenation of an alkene removes the double bond but preserves chirality if present.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
Hydrogenation of an alkene removes the double bond but preserves chirality if present.
Step 2: Detailed Explanation:
3-methyl-1-pentene is optically active due to chiral carbon. Hydrogenation gives 3-methylpentane which is optically inactive.
Step 3: Final Answer:
3-methyl-1-pentene is the correct answer.