Question

Liquid-liquid extraction is best suited to separate a mixture of compounds when:

A. The mixture contains compounds with similar polarities but different solubilities.
B. The mixture contains compounds with similar solubilities but different molecular weights.
C. The mixture contains compounds with similar melting points but different polarities.
D. The mixture contains compounds with similar molecular weight but different polarities.
E. The mixture contains compounds with similar molecular weight but different melting points.

Answer 1

A. The mixture contains compounds with similar polarities but different solubilities.

Step-by-step explanation:

Liquid – Liquid (LLE) extraction is a process for the isolation of compounds or metal complexes, also known as solvent extraction and partitioning, based on their relative solubility in two distinct liquids, generally water- (polar) liquids and an organic solvent (non-polar). Net transition from a liquid to a liquid process of one or more species, normally from aqueous to organic.