Discuss the action of air and light on ethers.

Discuss the mechanism of cleavage of ethers by halogen acids.

Discuss role of water and light in production of food in plants.

Discuss the buffer action of a buffer solution prepared by mixingm NaH_2PO_4 and Na_2HPO_4 solutions.

Sweet smelling organic compound Is slowly oxidized by air in presence of light to a highly poisonous gas. On heating with silver powder, it forms a gaseous substance B, which is also produced by the action of calcium carbide on water. Identify A and B and write the chemical equations of the reactions involved.

Discuss the roles of Na_2O_2KO_2 and LiOH in the purification of air.

Example of the vestigeal organs of human. Discuss two adaptive importance of air sac in pigeon.

The deterioration of metals by thee action of air, moistures etc is called______.

A ray of light is incident from water on the surface of separation of air and water at an angle 30^(@) , Calculate the angle of refraction in air. mu of water =(4)/(3)