The gas, which is present the most in air, is___
Which of the following is the most abundant gas present in air?
Q2. (a) What are the different constituents of air?
(b) Which is the most abundant gas present in the air? Give the relative abundance of the oxygen gas present in the air.
When a gas jar containing air is inverted over a gas jar containing bromine vapour, the red-brown bromine vapour diffuse into air. Explain how bromine vapour diffuse into air.