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.
  1. Class 9
  2. Chapter 2 Class 9 - Is Matter Around Us Pure (Term 1)

About the Author

CA Maninder Singh's photo - Founder at Teachoo
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo