Question

Oxygen _____ combustion and is ______ itself

• A. supports
• B. non-combustible

Answer 1

Supports combustion:

1. Combustion is the process of a substance burning in the atmospheric oxygen and emitting heat and light as a result.
2. Combustion is defined as a sudden exothermic reaction that releases a significant amount of energy in the heat produced, and flames are combustion reactions that can continue spreading through a suitable medium.
3. A supporter of combustion is air or oxygen, which aids in the combustion process.
4. Combustible substances are those that are combustible.
5. Oxygen is not flammable in and of itself. However, it requires fuel, i.e. which can burn, to cause combustion.

Non-combustible nature of oxygen:

1. Non-combustible substances do not heat up in the presence of air.
2. Therefore, when exposed to flame, it will not burn.

Final answer: Oxygen supports combustion and is non-combustible itself.