Question
Chemistry Question on Some basic concepts of chemistry
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-IV, B-I, C-II, D-III
A-IV, B-III, C-II, D-I
A-I, B-III, C-IV, D-II
A-II, B-III, C-I, D-IV
A-IV, B-III, C-II, D-I
Solution
• A. Distillation is used for the chloroform - aniline (IV).This method lowers the boiling point of liquids by reducing pressure, allowing separation of heat-sensitive compounds without decomposition.
• B. Fractional distillation is utilized for the separation of crude oil fractions (III). It involves a fractionating column that separates various components of crude oil based on their differing boiling points.
• C. Steam distillation is effective for separating aniline - water mixtures (II). This technique uses steam to separate substances with high boiling points or compounds immiscible with water.
• D. Distillation under reduced pressure is applied for separation of glycerol from spent-lye (I). Distillation works by heating the mixture to evaporate the component with a lower boiling point and condensing it in a separate chamber, useful for separating components in solutions.