After purification by crystallization, copper sulphate crystals can be obtained by :
A
filtration
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B
passing through funnel
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C
evaporation to dryness
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D
All of above
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Solution
The correct option is A filtration Impure copper sulphate is dissolved in water and heated till saturation. It is then cooled and crystals of pure copper sulphate are formed. These crystals are then separated by filtration and then dried.