Question

The best way to recover sugar from an aqueous sugar solution is :

(a) evaporation to dryness (b) distillation (c) filtration (d) crystallisation

Answer 1

Evaporation to dryness can't be used for solutions like sugar solution cause the Sugar will decompose upon heating.

Distillation is used to separate a pure liquidfrom a solid-liquid or liquid-liquid mixture.

Filtration is technically defined as the process of separating suspended solid matter from a liquid

Crystallisation is a process that separates a pure solid in the form of its crystals from a solution.

Answer: (iv). Crystallisation