Name the technique to separate - Salt from Sea-water

 

Answer

 

There can be two methods

  • Crystallisation
  • Evaporation

Let's look at both of them

 

By Crystallisation

  • It is a process that separates pure solid from an impure solution in the form of crystals.
  • In this case, sea water is heated in an open container. Then it is left to cool .
  • After some time, pure salt is obtained in the form of crystals .

 

By simple Evaporation

  • Sea water is left in an open pit / container for evaporation
  • When the water evaporates , pure salt is left behind in the container
  • Hence salt is separated from sea-water.
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Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 14 years and a teacher from the past 18 years. He teaches Science, Economics, Accounting and English at Teachoo