Match the List-I with List-II.

List-I (Mixture)	List-II (Method of Separation)
A. CHCl₃ + C₆H₅NH₂	I. Distillation under reduced pressure
B. Crude oil in petroleum industry	II. Steam distillation
C. Glycerol from spent-lye	III. Fractional distillation
D. Aniline-water	IV. Simple distillation

Choose the correct answer from the options given below:

CONCEPT:

Separation of Mixtures

• Different mixtures require specific methods of separation based on their physical and chemical properties.
• Some common methods of separation include:
  • Simple Distillation: Used for separating liquids with significantly different boiling points.
  • Fractional Distillation: Used for separating mixtures of liquids with closer boiling points.
  • Distillation Under Reduced Pressure: Used for separating heat-sensitive liquids that may decompose at high temperatures.
  • Steam Distillation: Used for separating substances that are volatile in steam from non-volatile impurities.

EXPLANATION:

• A. CHCl₃ + C₆H₅NH₂: These are heat-sensitive liquids. Therefore, Distillation under reduced pressure is used.
• B. Crude oil in petroleum industry: Crude oil is a complex mixture of hydrocarbons that have close boiling points. Therefore, Fractional Distillation is used.
• C. Glycerol from spent-lye: Glycerol is separated using Simple Distillation.
• D. Aniline-water: Aniline and water are separated using Steam Distillation as aniline is volatile in steam.
• A - I (Distillation under reduced pressure)
• B - III (Fractional Distillation)
• C - IV (Simple Distillation)
• D - II (Steam Distillation)

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