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Topic: Purification: crystallization, sublimation, distillation, differential extraction· Purification and Characterisation of Organic Compounds

Match List I with List IIList I (Mixture): A. CHCl_3 + C_6H_5NH_2 B. Crude oil in petroleum industry C. Glycerol from spent-lye D. Aniline - waterList II (Method of Separation): I. Distillation under reduced pressure II. Steam distillation III. Fract…

Match List I with List II

List I (Mixture): A. \(\mathrm{CHCl_3}\) + \(\mathrm{C_6H_5NH_2}\) B. Crude oil in petroleum industry C. Glycerol from spent-lye D. Aniline - water

List II (Method of Separation): I. Distillation under reduced pressure II. Steam distillation III. Fractional distillation IV. Simple distillation

Choose the correct answer from the options given below :

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

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

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

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

1 answer

Best answer

Answer: 1. A-IV, B-III, C-I, D-II

  • \(\mathrm{CHCl_3}\) + aniline: boiling points well apart (334 K vs 457 K), simple distillation (IV).
  • Crude oil: fractional distillation (III).
  • Glycerol from spent lye: decomposes at its normal boiling point, so distillation under reduced pressure (I).
  • Aniline-water: aniline is steam volatile, steam distillation (II).

A-IV, B-III, C-I, D-II: option (1).

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report
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