List conditions under which combustion can take place.

The conditions necessary for combustion to take place is given below:

1. Presence of combustible substance.
2. Presence of supporter of combustion.
3. Heating the combustible substance to its ignition temperature.

[Extra information: 

Combustion is a scientific term used for "burning". Combustion is a chemical process in which a substance reacts rapidly with oxygen and gives off heat and light energy.

The conditions necessary for the combustion to take place are:

1. There should be a combustible substance or a fuel.

2. There should be a medium in which combustion can take place, i.e., the presence of air.

3. The ignition temperature of the combustible substance should be attained by the use of fire or flame.

Types of Combustion: There are basically three types of combustion reactions.

1. Complete Combustion: One of the types of combustion is complete combustion. Complete combustion occurs in an unlimited supply of air, especially oxygen.

Example: the burning of a candle.

2. Incomplete Combustion: Incomplete combustion takes place when the air is in limited supply. It is dirty combustion. Due to a lack of oxygen, the fuel will not react completely, which in turn produces carbon monoxide and soot instead of carbon dioxide.

Example: burning of paper.

3. Rapid Combustion: Another type of combustion is rapid combustion. Rapid energy needs external heat energy for the reaction to occur. Combustion produces a large amount of heat and light energy and does so rapidly. The combustion will carry on as long as the fuel is available.

Example: lightning of a candle.

4. Spontaneous Combustion: As the name suggests, combustion occurs spontaneously. This means that it requires no external energy for the combustion to start. It happens due to self-heating. A substance with low-ignition temperatures gets heated, and this heat is unable to escape.

5. Explosive combustion: Explosive combustion happens when the reaction occurs very rapidly. The reaction occurs when something ignites to produce heat, light, and sound energy.

Example: firecrackers].