1.

Write the uses of nitrogen.

Answer»

Uses of Nitrogen: 

1. Liquid nitrogen is used as a refrigerant. 

2. It provides an inert atmosphere for conducting certain chemical reactions. 

3. It is used to prepare ammonia (by Haber’s process) which is then converted into fertilizers and nitric acid. 

4. It is used for inflating tyres of vehicles. 

5. It is used for filling the space above mercury in high temperature thermometer to reduce the evaporation of mercury. 

6. Many explosives such as TNT (Trinitrotoluene), nitroglycerin and gun powder contain nitrogen. 

7. It is used for the preservation of fresh foods, manufacturing of stainless steel, reducing fire hazards and as part of the gas in incandescent light bulbs.



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