alleryCRYSTALLISATION is used to:
ASeparate two miscible liquids using a condenser
BSeparate an insoluble solid from a liquid
CPurify a soluble solid by recrystallising from hot solution
DDetect colour differences in a mixed dye solution
Answer & Solution
Correct answer: C. Purify a soluble solid by recrystallising from hot solution
Crystallisation purifies a soluble solid: dissolve in hot solvent, slowly cool, pure crystals form and leave impurities in solution.
Used for sugar refining, copper sulphate, drug purification.
Cleaner than simple evaporation.
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