Question

You are given a mixture of salt and sand.How would you seperate them?

Answer 1

we use the difference in solubility in water of the two substances

sand is insoluble but salt is soluble.On adding water to this mixture, salt will dissolve and sand will not.When we filter this solution we will get salt solution as filtrate and sand as residue.This salt solution can be evaporated slowly to give salt crystals.

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