Question

Define the types of combustion

Answer 1

There are basically three different types of combustion:-
Spontaneous combustion: --- The combustion in which substances suddenly burst into flames, without the application of any apparent cause is called spontaneous combustion.
Rapid combustion: -- The combustion in which substances burn rapidly to produce heat and light is called rapid combustion. In rapid combustion, external heat must be supplied so that the substances can burn. 
Explosion: --- The combustion in which sudden reactions take place on ignition of some substances to produce heat, light, and sound is called explosion.

Answer 2

the process of burning is known as combustion.

combustion reaction is an exothermic reaction in which something reacts with oxygen. The combustion of organic compounds usually takes the form organic compound + oxygen => water + carbon dioxide. ... Combustion reactions are the classic one of the very most exothermic reaction we can have.