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JEE Main20258 Apr 2025Evening ShiftChemistryAlcohols Phenols and EthersActual

Match the List-I with List-II array |l|l|l|l| & array l List-I (Reagent) array & & array c List-II (Functional Group detected) array A. & array l Sodium bicarbonate solution array & I. & array l double bond/unsaturation array B. & array l Neutral ferric chloride array & II. & carboxylic acid C. & array l ceric ammonium nitrate array & III. & phenolic - OH D. & array l alkaline KMnO array & IV. & alcoholic - OH array

Options

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

Correct answer

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

Step-by-step solution

(1) Carboxylic acid gives efferve scence with sodium bicarbonate solution (2) Phenolic-OH gives voilet coloured complex with Neutral FeCl ₃ . (3) Alcoholic-OH gives Red colour with cerric ammonium Nitrate. (4) When alkaline KMnO ₄ reacts with an unsaturated compound (Alkene or alkyne) the purple colour of KMnO ₄ solution disappears, indicating positive test for unsaturation.

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