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Alcohols, Phenols and Ethers

JEE Main 2024 (Online) 4th April Evening ShiftMCQEasy📈 Topic in 10% papers+4−1
Ques. 1JEE Main 2024, 4 April (Evening Shift)

CH3-CH2-CH2-Br + NaOH C2H5OH Product 'A' [figure] Consider the above reactions, identify product B and product C.

  1. B = C = 1-Propanol
  2. B = 1-Propanol C = 2-Propanol
  3. B = C = 2-Propanol
  4. B = 2-Propanol C = 1-Propanol

Answer

(4) B = 2-Propanol C = 1-Propanol

Solution

CH3CH2CH2Br NaOH, C2H5OH CH3CH=CH2 (A, dehydrohalogenation)

CH3CH=CH2 H2O/H+ CH3- OH |CH-CH3 (B = 2-propanol)

∵ acid-catalysed hydration follows Markovnikov's rule (via 2° carbocation)

CH3CH=CH2 [H2O2/OH ]B2H6, H2O CH3CH2CH2OH (C = 1-propanol)

∵ hydroboration–oxidation gives anti-Markovnikov addition of water

Answer: (4)

Keep practising — Alcohols, Phenols and Ethers

Ques. 2JEE Main 2024, 4 April (Evening Shift)

Common name of Benzene - 1,2 - diol is -

  1. catechol
  2. quinol
  3. o-cresol
  4. resorcinol
Ques. 3JEE Main 2024, 1 February (Evening Shift)

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

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

Which among the following has highest boiling point?

  1. CH3CH2CH2CH2-OH
  2. CH3CH2CH2CH3
  3. CH3CH2CH2CHO
  4. H5C2-O-C2H5
Ques. 5JEE Main 2024, 31 January (Morning Shift)

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R: In the light of the above statements, choose the correct answer from the options given below:

  1. A is false but R is true.
  2. Both A and R are true but R is NOT the correct explanation of A.
  3. Both A and R are true and R is the correct explanation of A.
  4. A is true but R is false.
Ques. 6JEE Main 2024, 31 January (Morning Shift)

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R: In the light of the above statements, choose the correct answer from the options given below:

  1. A is false but R is true.
  2. Both A and R are true but R is NOT the correct explanation of A.
  3. Both A and R are true and R is the correct explanation of A.
  4. A is true but R is false.
Ques. 7JEE 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
Ques. 8JEE 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. 9JEE 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. 10JEE 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. 11JEE 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

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