Question

A mixture of sulphur and charcoal can be separated by _________ (solute/solvent) extraction method.

Answer 1

Carbon disulphide $\left(C{S}_2\right)$ is a solvent. When carbon disulphide is added to the mixture, sulphur dissolves. When this mixture will be filtered, the filtrate is sulphur solution while the residue is charcoal. Leaving it open evaporates $C{S}_2$ and sulphur crystals are left behind.

So, a mixture of sulphur and charcoal can be separated by solvent extraction method.