Question

Which one of the following gases is used in combustion?
(a) Hydrogen
(b) Oxygen
(c) Nitrogen
(d) Carbon dioxide

Answer 1

Oxygen has is used in combustion..as it supports burning


Hope it is correct

Answer 2

(b) Oxygen gases is used in combustion.

Explanation:

• In combustion process oxygen is the essential gas, it is non combustible gas, oxygen was discovered by K. Scheele.
• Combustion is a chemical reaction that occurs when a material combines quickly with oxygen and produces heat. The initial chemical is known as the fuel, while the oxygen supply is known as the oxidizer.
• The fuel and the oxidizer combine to form new chemical compounds during burning. Exhaust is the term for these chemical compound.
• The three main types of combustion are: rapid combustion, explosive combustion and spontaneous combustion.