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ChemistryNEET 2024Reaction intermediates and types of reactions

Organic Chemistry: Some Basic Principles and Techniques

The most stable carbocation among the four structures shown is:

Question 76 as printed in the NEET 2024 booklet

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

Solution

The 1-methylcyclohexyl cation (3) is tertiary — three alkyl groups stabilise it by hyperconjugation and +I effect. (1) and (4) are secondary and (2) is primary.

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