Question

Match List I with List II
\(\begin{array}{|c|c|c|} \hline \text{LIST I (Technique)} & & \text{LIST II (Application)} \\ \hline \text{A. Distillation} & & \text{I. Separation of glycerol from spent-lye} \\ \text{B. Fractional distillation} & & \text{II. Aniline - Water mixture} \\ \text{C. Steam distillation} & & \text{III. Separation of crude oil fractions} \\ \text{D. Distillation under reduced pressure} & & \text{IV. Chloroform-Aniline} \\ \hline \end{array}\)
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
• C. A-I, B-III, C-IV, D-II
• D. A-II, B-III, C-I, D-IV

Answer 1

The Correct Option is B

To address the question, each technique in LIST I must be matched with its corresponding application in LIST II. An analysis of each technique and its typical applications follows:

1. Distillation: This method separates volatile substances based on their differing boiling points. Option IV. Chloroform-Aniline aligns with distillation, as this process can isolate components with distinct boiling points.
2. Fractional Distillation: An advanced distillation technique, this is employed for separating liquid mixtures with closely related boiling points. It is commonly applied in III. Separation of crude oil fractions due to the presence of numerous components in crude oil with similar boiling points.
3. Steam Distillation: This technique is utilized for the purification of temperature-sensitive compounds, such as essential oils and specific aromatic compounds. It is suitable for II. Aniline - Water mixture, facilitating the separation of compounds that are immiscible with water and possess high boiling points.
4. Distillation under Reduced Pressure: This technique is designed for liquids prone to decomposition at elevated temperatures. By decreasing the pressure, distillation can occur at lower temperatures, making it appropriate for I. Separation of glycerol from spent-lye, where glycerol must be isolated without degradation.

The correct pairings of LIST I with LIST II are as follows:

List I (Technique)	List II (Application)
A. Distillation	IV. Chloroform-Aniline
B. Fractional Distillation	III. Separation of crude oil fractions
C. Steam Distillation	II. Aniline - Water mixture
D. Distillation under Reduced Pressure	I. Separation of glycerol from spent-lye

The definitive solution is: A-IV, B-III, C-II, D-I.