Question

How can we obtain pure copper sulphate crystals from an impure sample?​

Answer 1

Answer:

Evaporate water from the copper sulphate solution so as to get a saturated solution. Cover the solution with a filter paper and leave it undisturbed at room temperature to cool slowly for a day. You will obtain the crystals ofcopper sulphate in the china dish. The crystallisation method is used to purify solids.

Explanation:

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Answer 2

Answer:

Obtaining Pure Copper Sulphate from an Impure Sample

1. The crystallisation method is used to purify solids. For example, the salt we get from sea water can have many impurities in it.
2. To remove these impurities, the process of crystallisation is used.
3. Crystallisation is a process that separates a pure solid in the form of its crystals from a solution.