Question

What is combustion? Differentiate between combustible substances and non-
combustible substances.

Answer 1

Answer:

A substance which burns in air and tends to produce heat and light is known as Combustible substances. Non-combustible substances are certain substances which are not combustible in the presence of air. Will not burn on being exposed to flame. Examples – Diesel, petrol, kerosene.

Answer 2

$\sf{ ❥~Answer~}$

Combustion or burning is a chemical reaction between substances usually including oxygen and usually accompanied by the generation of heat and light in the form of flame.