Emulsion is a dispersion of ____.

Read the following questions carefully and answer them. 

The gas used for artificial fruit ripening of green fruit is —

Oiled paper is?

During uniform motion of an object along a straight line, its ___________ remains constant with time.

Which of the following has low density and low melting point?

The gas which is present in both the natural gas and the bio-gas is

Halogens are belonging to:

Read the following questions carefully and answer them. 

Polythene is polymer of