Question

Question 21

Dissolve two spoons of common salt in half a cup of water. Now, if you want to get the salt back, what will you do?

Answer 1

The common salt dissolved in half a cup of water can be recovered by removing the water from the salt solution.
This can be done by heating the solution on a gas stove or keeping it under the sun on a plate for a few hours.
Heat will evaporate the water in form of water vapour leaving behind the salt.