The composition of air in terms of percentage of its varous components – InterviewSolution

1.	The composition of air in terms of percentage of its varous components is given. (a) Identify X and Y. (b) Mention any two uses of X and Y . (c ) identify the gases present in Z.
Answer» (a) X is nitrogen and Y is oxygen. (b) (i) Nitrogen dilutes the activity of oxygen. (ii) Nitrogen is essential for the growth of plants. (iii) Oxygen is essential for respiration. (iv) Oxygen support combustion. (c ) Z contains carbon dioxide , argon , helium , water vapour.

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