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Uses of the Oxygen and Nitrogen from fractional distillation of liquefied air

Answer Text:
Uses of the products:
Oxygen;
- Used in hospitals with patients with breathing difficulties;
- It is used by mountain climbers and deep-sea divers for breathing;
- It is used to burn fuels;
- It is combined with acetylene to form oxyacetylene flame which is used in welding;
- During steel making oxygen is used to remove carbon impurities;
Nitrogen:
- Manufacture of ammonia;
- Used in light bulbs; because of its inert nature it dies not react with the filament;
- As a refrigerant e.g. storage of semen for artificial insemination;