JEE Main · 2025 · Shift-IImediumSOL-138

Match List-I (Purification technique) with List-II (Mixture of organic compounds): List-I: (A) Distillation (simple),…

Solutions · Class 12 · JEE Main Previous Year Question

Question

Match List-I (Purification technique) with List-II (Mixture of organic compounds):

List-I: (A) Distillation (simple), (B) Fractional distillation, (C) Distillation under reduced pressure, (D) Steam distillation

List-II: (I) Diesel + Petrol, (II) Aniline + Water, (III) Chloroform + Aniline, (IV) Glycerol + Spent-lye

Options
  1. a

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

  2. b

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

  3. c

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

  4. d

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

Correct Answerd

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

Detailed Solution

Strategy:\n> Match common lab purification methods to appropriate mixtures based on physical properties like boiling point difference and miscibility.\n\n- (A) Simple distillation: Chloroform (61°C) + Aniline (184°C) impliesimplies large ΔBP\Delta BP. (III)\n- (B) Fractional distillation: Diesel + Petrol impliesimplies crude oil fractions. (I)\n- (C) Reduced pressure (Vacuum): Glycerol (bp 290°C, decomposes). (IV)\n- (D) Steam distillation: Aniline (volatile with steam, water-immiscible). (II)\n\ntextAnswer:(4)\boxed{\\text{Answer: (4)}}

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