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JEE Main 20231 FebruaryMorning Shift
Exam
JEE Main
Year
2023
Date
1 February
Shift
Morning Shift
Subject
Chemistry
Chapter
Alcohols Phenols and Ethers

JEE Main 2023 · 1 February · Morning Shift · Chemistry · Alcohols Phenols and Ethers

Decreasing order of dehydration of the following alcohols is

Decreasing order of dehydration of the following alcohols is

Decreasing order of dehydration of the following alcohols is

Options

  1. Aa > d > b > c
  2. Bb > d > c > a
  3. Cb > a > d > c
  4. Dd > b > c > a

Correct answer

B. b > d > c > a

Step-by-step solution

The dehydration of alcohol takes place via the formation of a carbocation. Hence, the rate of reaction depends on the stability of carbocation.

No dehydration is possible in phenol because carbocation formation is difficult in case of phenol.

Option (d) fast due to loss of H2O{H}_{2}O and conjugation increasing stable of compound as compared to (c). Option(b) is very fast because stable compound formed.

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