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ChemistryNEET 2025Nucleophilic substitution: SN1 and SN2

Haloalkanes and Haloarenes

The major product of the reaction shown in the figure is:

Question 78 as printed in the NEET 2025 booklet

  1. A.Structure (1)
  2. B.Structure (2)✓
  3. C.Structure (3)
  4. D.Structure (4)

Solution

Excess attacks both electrophilic sites: the ketone becomes a tertiary alcohol (–C(OH)(CHPh), and the nitrile adds one equivalent to form an imine salt that hydrolyses to a methyl ketone on work-up. Product (2): the hydroxy-ketone.

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