Match List I with List II

	List-I (Mixture)		List-II (Method of separation)
A.	$\text{CHCl₃ + C₆H₅NH₂}$	(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:

To solve this matching problem, let us analyze the separation methods for each mixture listed in List-I and pair them with the appropriate separation techniques in List-II:

A. $\text{CHCl₃ + C₆H₅NH₂}$ (Chloroform and Aniline):
Chloroform (boiling point 334 K) and aniline (boiling point 457 K) have a significant difference in their boiling points. Liquids with sufficiently large differences in their boiling points are separated using Simple distillation. Therefore, A matches with (IV).

B. Crude oil in petroleum industry:
Crude oil is a complex mixture of many organic compounds (hydrocarbons) whose boiling points are very close to one another. To separate these fractions, Fractional distillation is used, where a fractionating column is employed to facilitate repeated condensation and vaporization. Therefore, B matches with (III).

C. Glycerol from spent-lye:
Glycerol has a very high boiling point (563 K) and decomposes at or below its boiling point. Therefore, it cannot be distilled under ordinary atmospheric pressure. It is purified by distillation at a lower temperature than its normal boiling point by reducing the pressure on its surface. This process is called Distillation under reduced pressure (or vacuum distillation). Therefore, C matches with (I).

D. Aniline - water:
Aniline is immiscible in water, volatile in steam, and possesses a high vapor pressure at the boiling temperature of water. Such mixtures are separated using Steam distillation, where steam is passed through the heated mixture to vaporize the steam-volatile component at a temperature lower than its individual boiling point. Therefore, D matches with (II).

Comparing our findings with the options:
A matches with IV
B matches with III
C matches with I
D matches with II
This corresponds to the match: A-IV, B-III, C-I, D-II.