Describe three important uses of water .

Describe the importance of water vapour in air.

Give important uses of acetone.

Describe two important uses of each of the following: (a) casutic soda, (b) sodium carbonate and ( c) quicklime.

Give three important uses of acetaldehyde.

Describe the important methods for the preparation of alkenes.

Describe the important methods for the preparation of alkynes.

How was neutron discovered? Describe the important properties of neutron.

Describe the important processes used for the preparation of hydrogen peroxide. How is a dilute solution of hydrogen peroxide concentrated and what precautions are taken to store it ?

Describe the important aspects of bimolecular collision theory of reaction rates.

List any five points to describe the importance of the atmosphere.