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JEE Main 2025 Apr 2 Shift 2, Chemistry Q16: Preparation of Alkyl Halides (Halo Alkanes) & Aryl Halides (Halo Arenes)

JEE Main2025Apr 2, Shift 2Chemistry
Q.

Match List-I with List-II

List-I (Reaction)List-II (Name of reaction)
(A)(I)Lucas reaction
(B)(II)Finkelstein reaction
(C)(III)Fittig reaction
(D)(IV)Gatterman reaction

Choose the correct answer from the options given below :

  1. A

    (A)-(III), (B)-(II), (C)-(IV), (D)-(I)

  2. B

    (A)-(III), (B)-(IV), (C)-(II), (D)-(I)

  3. C

    (A)-(IV), (B)-(III), (C)-(I), (D)-(II)

  4. D

    (A)-(IV), (B)-(I), (C)-(II), (D)-(III)

Solution

Identifying each named reaction:

(A) Coupling of two aryl halides with sodium in dry ether to give a biaryl is the Fittig reaction (III).

(B) Conversion of an arenediazonium salt to aryl chloride using Cu/HCl is the Gattermann reaction (IV).

(C) Exchange of bromide for iodide using NaI in dry acetone is the Finkelstein reaction (II).

(D) Conversion of a tertiary alcohol to the corresponding chloride with HCl in the presence of is the basis of the Lucas test (I).

A-III, B-IV, C-II, D-I.

Concept behind this question

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