Name the process by which the components of following mixtures can be separated.

(a) Iron and sulphur

(b) Ammonium chloride and sand

(c) Common salt from sea water

(d) Chaff and grain

(e) Water and mustard oil

(f) Sugar and water

(g) Cream from milk

How will you separate a mixture of common salt, chalk powder and powdered camphor? Explain.

(a) What is chromatography?

(b) Why is it named so?

(c) What are the advantages of chromatography?

(d) Name the simplest type of chromatography?

(e) On what principle is this method based?

(f) What is meant by stationary phase and mobile phase in chromatography?

On what principle are the following methods of separation based? Give one example of a mixture for each of the methods mentioned in which they are used

(a) sublimation

(b) filtration

(c) sedimentation and decantation

(d) solvent extraction method

(e) magnetic separation

(f) by using a separating funnel

(g) fractional distillation