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Chemistry · PYQ NEET UG 2026

हिन्दी

The compound that CANNOT be obtained from the aldol condensation reaction shown below, is

  1. structure

  2. structure

  3. structure

  4. structure

Correct answer · Option 1

structure

Explanation

Aldol condensation between 3,3-dimethylcyclopentanone and benzaldehyde requires alpha-hydrogens from the ketone. Since 3,3-dimethylcyclopentanone has only one methyl-adjacent alpha-carbon with alpha-hydrogens, specific crossed aldol products are formed, ruling out certain structures.
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