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ChemistryNEET 2024Preparation and reactions of alcohols

Alcohols, Phenols and Ethers

Which one of the following alcohols (three drawn as structures; the fourth is ) reacts instantaneously with Lucas reagent?

Question 61 as printed in the NEET 2024 booklet

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

Solution

The Lucas test turns turbid instantly only with tertiary alcohols, which form a stable tertiary carbocation. 2-Methylpropan-2-ol, (structure 3), is tertiary; (1) is secondary and (2), (4) are primary.

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