Which method is used to obtain copper sulphate from an impure sample?
A
Hand-picking
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B
Fractional Distillation
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C
Crystallisation
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D
None of the above
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Solution
The correct option is C Crystallisation Copper sulphate can be obtained from an impure sample by crystallisation. The impurities will remain in the mother liquor whereas the pure copper sulphate will crystallize out.