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JEE Main20238 Apr 2023Morning ShiftChemistryAldehydes and KetonesActual

. Match List I with List II : List I (Reagents used) List II (Compound with Functional group detected) A. Alkaline solution of copper sulphate and sodium citrate I. B. Neutral FeCl 3 solution II. C. Alkaline chloroform solution III. D. Potassium iodide and sodium hypochloride IV Choose the correct answer from the options given below :

Options

  1. AA-III, B-IV, C-I, D-II
  2. BA-III, B-IV, C-II, D-I
  3. CA-IV, B-I, C-II, D-III
  4. DA-II, B-IV, C-III, D–I

Correct answer

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

Step-by-step solution

(A) Aldehydes give red precipitate with Fehling's solution. (B) Phenols give violet colour with neutral ferric chloride solution (C) Primary amines give isocyanides with chloroform in the presence of alkali. This reaction known as carbylamine reaction. (D) 1-phenylethanol give haloform reaction with sodium hypochlorite. The products are benzoate and chloroform.

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