The uses of dioxygen are as follows :
- Dioxygen is essential for sustaining life. It is used in hospitals for artificial respiration.
- It is used in oxy-hydrogen (2800°C) and oxyacetylene (3200°C) torches used for cutting and welding metals.
- Oxygen cylinders are used in hospitals, for high altitude flying and in mountaineering.
- It is used in the combustion of fuels. In rockets, hydrazine in oxygen is used as a fuel as it provides tremendous thrust.
