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Question

What is the technique we use to purify salt from sea water?


  1. Crystallisation

  2. Distillation

  3. Centrifugation

  4. Filteration


Solution

The correct option is A

Crystallisation


Crystallisation is a method to purify solids. It is a process that is used to separate a pure solid in the form of its crystals from a solution. This method is used when there are more than one solutes dissolved in a solvent, for example, obtaining common salt from sea water.

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