Match List I with List II:
LIST-I (Technique): A. Distillation B. Fractional distillation C. Steam distillation D. Distillation under reduced pressure
LIST-II (Application): I. Separation of glycerol from spent-lye II. Aniline–Water mixture III. Separation of crude oil fractions IV. Chloroform–Aniline
Choose the correct answer from the options given below:
LIST-I (Technique): A. Distillation B. Fractional distillation C. Steam distillation D. Distillation under reduced pressure
LIST-II (Application): I. Separation of glycerol from spent-lye II. Aniline–Water mixture III. Separation of crude oil fractions IV. Chloroform–Aniline
Choose the correct answer from the options given below:
- (A)A-IV, B-I, C-II, D-III
- (B)A-IV, B-III, C-II, D-I✓ Correct
- (C)A-I, B-II, C-IV, D-III
- (D)A-II, B-III, C-I, D-IV
Answer: (B)
Solution
Simple distillation (A) separates chloroform from aniline, two liquids with a large difference in boiling point (A-IV).
Fractional distillation (B) separates the many close-boiling fractions of crude oil (B-III).
Steam distillation (C) is used for a steam-volatile, water-immiscible liquid such as aniline, distilled along with water (C-II).
Distillation under reduced pressure (D) is used for glycerol, which decomposes at its normal boiling point, so it is separated from spent-lye under vacuum (D-I).
This gives A-IV, B-III, C-II, D-I.
Fractional distillation (B) separates the many close-boiling fractions of crude oil (B-III).
Steam distillation (C) is used for a steam-volatile, water-immiscible liquid such as aniline, distilled along with water (C-II).
Distillation under reduced pressure (D) is used for glycerol, which decomposes at its normal boiling point, so it is separated from spent-lye under vacuum (D-I).
This gives A-IV, B-III, C-II, D-I.
JEE Main · 2024 · 31 Jan 2024 · Shift 1 · Single correct option