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Alcohols, Phenols and Ethers

JEE Main 2025 (Online) 29th January Evening ShiftMCQMedium📈 Topic in 8% papers+4−1
Ques. 1JEE Main 2025, 29 January (Evening Shift)

Which one of the following, with HBr will give a phenol?

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]

Answer

(1) [figure]

Solution

HBr cleaves O-CH3 (alkyl side) of aryl alkyl ether; the aryl C–O bond never breaks.

[figure]

(2), (3), (4): oxygen is on sp³ carbons only ⇒ alkyl bromide + alcohol, no phenol.

Answer: (1)

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Ques. 2JEE Main 2025, 23 January (Evening Shift)

Given below are two statements : In the light of the above statements, choose the correct answer from the options given below :

  1. Statement I is false but Statement II is true
  2. Both Statement I and Statement II are true
  3. Statement I is true but Statement II is false
  4. Both Statement I and Statement II are false
Ques. 3JEE Main 2025, 23 January (Evening Shift)

Identify the products [A] and [B], respectively in the following reaction: [figure]

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]

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