Match List-I (Mixture) with List-II (Method of separation). List-I: A. CHCl3 + C6H5NH2, B. Crude oil in petroleum industry, C. Gl…
Chemistry ·Previously asked in NEET UG 2025
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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:
- A. A-IV, B-III, C-I, D-II (Correct answer)
- B. A-IV, B-III, C-II, D-I
- C. A-III, B-IV, C-I, D-II
- 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