Question

A substances that catch fire easily are called the__________substances.

Answer 1

1. The minimum temperature at which a substance catches fire is called its ignition temperature.
2. Some substances are there that have a very low ignition temperature.
3. Some of the substances have a high ignition temperature.
4. Due to low ignition temperature, the substances catch fire easily, for example, petrol, alcohol and LPG etc.
5. The substances that catch fire easily are called inflammable substances.

Thus, the substances that catch fire easily are called inflammable substances.