Question

The adjoining diagram shows the approximate percentage of different components of air.

Which percentage is for:

(a) Nitrogen

(b) Carbon dioxide and other gases

(c) Oxygen

Answer 1

• Air is a mixture of many gases and dust particles, water vapors, etc.
• In air Nitrogen is 78%, oxygen is 21%, and the rest of 1% consists of many other noble gases, dust particles, and some pollution also.
• Carbon dioxide is present in 0.03% of the environment and plays a very essential role in the environment.
• Nitrogen is present most abundantly but it does not react with any other gas as the triple bond present between the two atoms of nitrogen makes it almost inert.
• Oxygen plays a vital role as living organisms need oxygen for respiration.
• Dust particles play an essential role in the scattering of light and also in the propagation of sound.
• Rest gases(inert gases) help in maintaining the inert environment.

So, In the adjoining diagram,

1. 78% represents nitrogen,
2. 1% represents carbon dioxide and other gases.
3. 21% represents oxygen.