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Haloalkanes and Haloarenes

JEE Main 2025 (Online) 24th January Morning ShiftMCQMedium📈 Topic in 24% papers+4−1
Ques. 1JEE Main 2025, 24 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 false but Statement II is true
  2. Statement I is true but Statement II is false
  3. Both Statement I and Statement II are false
  4. Both Statement I and Statement II are true

Answer

(4) Both Statement I and Statement II are true

Solution

Effect of polarity: compare charge in reactants and in transition state (TS).

I: HO- (localised charge) TS (charge dispersed) polar solvent stabilises reactant more, raises Ea faster in less polar medium (true).

II: neutral R3N TS with developing charges polar solvent stabilises TS, lowers Ea (true).

Answer: (4)

Keep practising — Haloalkanes and Haloarenes

Ques. 2JEE Main 2025, 24 January (Evening Shift)

The structure of the major product formed in the following reaction is : [figure]

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
Ques. 3JEE Main 2025, 23 January (Morning Shift)

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

  1. A-II, B-III, C-I, D-IV
  2. A-II, B-I, C-III, D-IV
  3. A-IV, B-I, C-III, D-II
  4. A-IV, B-III, C-I, D-II
Ques. 4JEE Main 2025, 23 January (Evening Shift)

The ascending order of relative rate of solvolysis of following compounds is : [figure]

  1. (C) < (D) < (B) < (A)
  2. (D) < (A) < (B) < (C)
  3. (D) < (B) < (A) < (C)
  4. (C) < (B) < (A) < (D)
Ques. 5JEE Main 2025, 22 January (Morning Shift)

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

  1. Both Statement I and Statement II are incorrect
  2. Both Statement I and Statement II are correct
  3. Statement I is correct but Statement II is incorrect
  4. Statement I is incorrect but Statement II is correct
Ques. 6JEE Main 2025, 22 January (Evening Shift)

[figure] The maximum number of RBr producing 2-methylbutane by above sequence of reactions is . (Consider the structural isomers only)

  1. 5
  2. 3
  3. 4
  4. 1

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