Match List-I (Mixture) with List-II (Method of separation). List-I: A. CHCl3 + C6H5NH2, B. Crude oil in petroleum industry, C. Gl…

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Question

Match List-I (Mixture) with List-II (Method of separation). List-I: A. CHCl3 + C6H5NH2, B. Crude oil in petroleum industry, C. Glycerol from spent-lye, D. Aniline-water. List-II: (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. A-IV, B-III, C-I, D-II (Correct answer)
  2. B. A-IV, B-III, C-II, D-I
  3. C. A-III, B-IV, C-I, D-II
  4. D. A-III, B-IV, C-II, D-I

Correct Answer

Option A — A-IV, B-III, C-I, D-II

Detailed Solution & Explanation

The correct answer is A-IV, B-III, C-I, D-II.

Key Points

  • CHCl$_3$ + aniline (large boiling-point difference) $\to$ simple distillation (IV).
  • Crude oil $\to$ fractional distillation (III).
  • Glycerol from spent-lye (decomposes on strong heating) $\to$ distillation under reduced pressure (I).
  • Aniline-water $\to$ steam distillation (II).

Topics covered: NEET UG 2025 Chemistry Purification of Organic Compounds Distillation