Question

Technique utilized to separate a mixture of dissolved solids by evaporation according to individual solubilities.

• A. Distillation
• B. Chromatography
• C. Fractional crystallization
• D. Filtration
• E. Sedimentation

Answer 1

The correct option is C Fractional crystallization

Technique utilized to separate a mixture of dissolved solids by evaporation according to individual solubilities is fractional crystallization. Two solutes have different solubilities in the same solvent at the same temperature. Fractional crystallization is step-wise crystallization. First, less soluble solute is crystallized out. Later, more soluble solute is crystallized out.