English Medium Class 9 - CBSE Question Bank Solutions for Science

Name the process by which the various gases of the air are separated.

A carpenter wants to separate iron nails from saw-dust. Which method of separation should he choose ?

A carpenter wants to separate iron nails from saw-dust. Which method of separation should he choose ?

Name the process which can be used to recover salt from an aqueous salt solution.

Name the process which can be used to recover salt from an aqueous salt solution.

Name the process which can be used to recover salt from an aqueous salt solution.

Name the process which can be used to recover salt from an aqueous salt solution.

Name the process which is used in milk dairies to separate cream from milk.

Name the process which is used in milk dairies to separate cream from milk.

What is the general name of the process by which tea-leaves are separated from prepared tea ?

What is the general name of the process by which tea-leaves are separated from prepared tea ?

Name the process you would use to separate a mixture of water and alcohol.

Name the process you would use to separate a mixture of water and alcohol.

What difference in the properties of oil and water enable their separation by a separating funnel ?

What difference in the properties of oil and water enable their separation by a separating funnel ?

Name the process by which common salt is obtained from sea-water.

Name the process by which common salt is obtained from sea-water.

Name the process which can be used to purify an impure sample of copper sulphate.

Name the process which can be used to purify an impure sample of copper sulphate.

Name the process by which common salt is purified.