Pure Substances and Mixtures — CHEMISTRY STD 6 — Question

Solvent extraction method is used when one constituent of a mixture is soluble in a particular liquid whereas the other constituent is insoluble in it. For example, sugar is soluble in water whereas sand is insoluble in water. To separate sugar from a mixture of sugar and sand, water is added to the mixture. The sugar gets dissolved in water. The solution is then filtered. The sand remains as a residue on the filter paper. The sugar solution is obtained as a filterate. This is then evaporated to get sugar.