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Alcohols, Phenols and Ethers

JEE Main 2024 (Online) 30th January Evening ShiftMCQEasy📈 Topic in 22% papers+4−1
Ques. 1JEE Main 2024, 30 January (Evening Shift)

Salicylaldehyde is synthesized from phenol, when reacted with

  1. HCCl3, NaOH
  2. CO2, NaOH
  3. [figure]
  4. CCl4, NaOH

Answer

(1) HCCl3, NaOH

Solution

[figure]

Reimer–Tiemann reaction: CHCl3 + OH- :CCl2 (electrophile) attacks the ortho position of phenoxide; –CHCl2 is hydrolysed to –CHO

(B) CO2, NaOH ⇒ salicylic acid (Kolbe) ⇒ wrong

(C) HCOCl is unstable, not a reagent for this ⇒ wrong

(D) CCl4, NaOH ⇒ salicylic acid ⇒ wrong

Answer: (1)

Keep practising — Alcohols, Phenols and Ethers

Ques. 2JEE Main 2024, 30 January (Evening Shift)

Products A and B formed in the following set of reactions are [figure]

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
Ques. 3JEE Main 2024, 29 January (Morning Shift)

The major product(P) in the following reaction is [figure]

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
Ques. 4JEE Main 2024, 29 January (Evening Shift)

Phenol treated with chloroform in presence of sodium hydroxide, which further hydrolyzed in presence of an acid results

  1. Salicylic acid
  2. Benzene-1,2-diol
  3. 2-Hydroxybenzaldehyde
  4. Benzene-1,3-diol
Ques. 5JEE Main 2024, 29 January (Evening Shift)

Match List I with List II Choose the correct answer from the options given below:

  1. A-I, B-II, C-III, D-IV
  2. A-IV, B-I, C-II, D-III
  3. A-II, B-I, C-IV, D-III
  4. A-III, B-IV, C-I, D-II
Ques. 6JEE Main 2024, 27 January (Morning 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 true but Statement II is false
  2. Both Statement I and Statement II are true
  3. Both Statement I and Statement II are false
  4. Statement I is false but Statement II is true
Ques. 7JEE Main 2024, 27 January (Morning Shift)

The ascending order of acidity of -OH group in the following compounds is : [figure] Choose the correct answer from the options given below:

  1. (A) < (D) < (C) < (B) < (E)
  2. (C) < (A) < (D) < (B) < (E)
  3. (C) < (D) < (B) < (A) < (E)
  4. (A) < (C) < (D) < (B) < (E)
Ques. 8JEE Main 2024, 27 January (Evening Shift)

Major product formed in the following reaction is a mixture of : [figure]

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
Ques. 9JEE Main 2024, 27 January (Evening Shift)

Match List - I with List - II. Choose the correct answer from the options given below :

  1. (A)-(II), (B)-(I), (C)-(III), (D)-(IV)
  2. (A)-(IV), (B)-(I), (C)-(III), (D)-(II)
  3. (A)-(IV), (B)-(III), (C)-(I), (D)-(II)
  4. (A)-(II), (B)-(III), (C)-(I), (D)-(IV)
Ques. 10JEE Main 2024, 27 January (Evening Shift)

The final product A, formed in the following reaction sequence is: [figure]

  1. [figure]
  2. [figure]
  3. Ph-CH2-CH2-CH2-OH
  4. Ph-CH2-CH2-CH3

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