Which among the following purification methods is based on the...

In chemistry, differential extraction is defined as a technique that is used to separate any organic compound that is present in an aqueous solution from the rest of the solution. The process of liquid-liquid extraction is the most commonly used in the chemistry laboratory, and it takes place in a separatory funnel.

The organic compound is later recovered by the process of distillation or evaporation. The process of continuous extraction is used in cases when the solubility of the compound is less in the organic solvent.