10
Question Question 10
State four uses of hydrogen.
The four uses of hydrogen are:
- The oxy-hydrogen flame obtained by burning hydrogen and oxygen together has a very high temperature of about 2800°C - 3000°C. Hence it is used for cutting and welding of metals.
- It is used as a fuel as hydrogen has high heat of combustion.
- It is used for hydrogenation of vegetable oil.
- It is used as a reducing agent in extraction of metals.