Question

Iron is a combustible substance.

• A. True
• B. False

Answer 1

The correct option is B False

Substances that do not burn in air/oxygen in the presence of a flame are called non-combustible substances. Iron is a non- combustible substance. Hence it fails to burn, and so it doesn't create any flame.

Combustibility of a material depends upon its ease of reaction with air/oxygen, the ignition temperature and the release of flammable vapours.

Substances like petrol, kerosene and diesel are highly combustible. Stones, glass, and cement are examples of non-combustible substances.