Question

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Answer 1

Answer:

There are three conditions which are necessary for combustion to take place:

1)Presence of combustible substance

Wood and paper are examples of such materials.

2)Presence of supporter of combustion

For Ex:The most common supporter of combustion which we have around us is air.

We find that when the supply of supporter of combustion to a burning substance is cut off,then the process of burning also stops.

3)Heating the combustible substance to its ignition temperature

For Ex:The ignition temperature of paper is 233 °C.This means that a paper has to be heated at least to a temperature of 233 °C so that it may catch fire and start burning.