Which of the following compounds produces an optically inactive compound on hydrogenation?
Hydrocarbons · Class 11 · JEE Main Previous Year Question
Which of the following compounds produces an optically inactive compound on hydrogenation?
- a
- b✓
- c
- d
Step 1: Understand when hydrogenation gives an optically inactive product
Hydrogenation adds across a double bond. The product is optically inactive if:
- No chiral center is created or present
- Meso compound is formed (stereocenters present but molecule has internal mirror plane)
- Racemic mixture is formed (equal amounts of R and S)
Step 2: Analyze option (b) The hydrogenation of this compound B generates symmetry. This makes the final product achiral. Answer: Option (b)
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