Question

Write a note on composition of air in two or three paragraph.
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Answer 1

Air is a mixture of gases. Three elements make up over 99.9 percent of the composition of dry air: these are nitrogen, oxygen, and argon.

Though we know air is essential for breathing, but have we ever given it a serious thought? Have you wondered what is it that makes the air so important and why is it important to preserve the environment? What effect will it have on our health if we allow air pollution to grow? What is the composition of air? Let us know more

We often take air as a single unit. In reality, air is composed of several gases. The composition of air consists of three key components of air, namely Nitrogen (78%), Oxygen (21%), Argon (1%), Carbon-di-oxide (0.03%) and water vapor.  Air also has some other gases but they are in very minute percentage.

It is also important to understand that the composition stated above is the ideal composition of air, which maintains the fine balance in nature. In places where this composition of air varies, the atmospheric balance of nature may be tilted. For instance, in an industrial area, the composition of air can differ drastically. There may be a high quantity of harmful gases emitted from the industrial chimneys that can increase the amount of carbon-dioxide in the air, making it harmful to anyone who breathes such air.

Answer 2

Nitrogen and oxygen are two gases which make up the bulk of the atmosphere. Carbon dioxide, helium,ozone, argon andhydrogen are foundin lesser quantities.Apart from thesegases, tiny dustparticles are alsopresent in the air.

Nitrogen oxides are acidic. Cavendish used aqueous sodium hydroxide to remove them from the apparatus. [This would also, of course, have removed any carbon dioxide that was present.] He removed the remaining oxygen using potassium polysulfides.

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