Name: The Structure of a Flame
Uploaded: 2019-07-19
Duration: 5 min 14 s
Description: We have all heard of candlelight vigils, where people gather holding candles after sunset, in order to support a cause. Is there some chemistry behind the bu...

Question

Complete the mind maps given below.

Accepted Answer

The complete mind maps are given below.

The fuels can be classified on the basis of their occurrence as given below.
1) Primary fuels such as wood.
2) Secondary fuels such as petrol.
The fuels can be classified on the basis of their physical state as given below.
1) Solid fuels such as coal.
2) Liquid fuels such as kerosene.
3) Gas fuels such as LPG.
The fuels can be classified on the basis of their source as given below.
1) Renewable fuels such as wood.
2) Non-renewable fuels such as petrol.

Combustion can be of three types.
1) Spontaneous combustion: For example, burning of white phosphorous.
2) Rapid combustion: For example, burning of LPG.
3) Explosion: For example, burning of firecrackers.

There are three zones in a candle flame as stated below.
1) The innermost zone: It is black in colour.
2) The middle zone: It is yellow in colour.
3) The outermost zone: It is blue in colour.

Source of energy	Use
Sun	Photosynthesis in plants

Complete the mind maps given below.

Important Questions on Combustion and Flame

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