Suggest one method for the removal of hardness.

Hard water does not give ready leather with soap. Suggest one method to remove hardness.

Explain the methods used for the removal of temporary hardness of water.

Suggest suitable method for the following process.Refining a metal of high degree of Purity.

Suggest suitable method for the following process.Benefication of sulphide ores.

Colloids are an intermediate between suspension and solutions. Suggest suitable method for the preparation of the following sol:Gold sol

Colloids are an intermediate between suspension and solutions. Suggest suitable method for the preparation of the following sol:Ferric hydroxide sol

Halo alkanes and Halo arenes are organohalogen compounds.Suggest a method for the preparaition of alkyl chloride.

Hydrogen is the most abundant element in the universe. But in free state it is almost not found in earth's atmosphere. Suggest any three method for the preparation of H_2 , gas.

People prefer seedless fruits to seeded ones. Suggest a method for the production of such fruits artificially.

Suggest a suitable method for the separation of a mixture of aniline - water mixture