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JEE Main202329 Jan 2023Morning ShiftChemistryAldehydes and KetonesActual

Match List I with List II. List I List II Reaction Reagents (A) Hoffmann Degradation (I) Conc. KOH , Δ (B) Clemmensen reduction (II) CHCl 3 , NaOH / H 3 O + (C) Cannizzaro reaction (III) Br 2 , NaOH (D) Reimer-Tiemann reaction (IV) Zn - Hg / HCl

Options

  1. A(A) - III, (B) - IV, (C) - II, (D) - I
  2. B(A) - II, (B) - IV, (C) - I, (D) - III
  3. C(A) - III, (B) - IV, (C) - I, (D) - II
  4. D(A) - II, (B) - I, (C) - III, (D) - IV

Correct answer

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

Step-by-step solution

(A) Hoffmann degradation reaction: Hoffmann developed a method for the preparation of primary amines by treating an amide with bromine in an aqueous or ethanolic solution of sodium hydroxide.               O                           ∥ R - C - NH 2   +   Br 2   +   4 NaOH   →   R - NH 2   +   Na 2 CO 3   +   2 NaBr   +   2 H 2 O (B) Clemmensen re

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