Question

Name the technique used to separate

a) Describe chromatography
b) Camphor from salt

Class 9​

Answer 1

Answer:

a) When a solid substance is added in solvent continuously till it dissolves on a given temperature forms a saturated solution. When a solid substance is added in a saturated solution while heating it forms a super saturated solution and when the super saturated solution is left for cooling down, it forms crystalls in it and the process is known as "Crystallisation".

Answer 2

Answer:

1. Salt from sea water can be separated by the technique of crystallization or by the evaporation.
2. Camphor is sublimable but salt is not. So,camphor can be separated from salt sublimation technique.

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