Question

what is coal?explain

Answer 1

Hey Friend☺

Coal is a fossil fuel .

it is the amorphous form of carbon

Depending upon the presence of carbon it is classified into four types

1. peat

2.Lignite

3.Bituminus

4.Anthracite

Answer 2

Coal is a complex mixture of compounds of carbon, hydrogen and oxygen and some free carbon. It is found in deep coal mines under earth's surface. Some small amount of nitrogen and oxygen are also present..

Coal is important because it can be used as a source of energy as obtained from nature and it also can be converted into other forms of energy like coal gas, electricity and oil(synthetic petroleum)...

When coal is burnt, the carbon present in it react with oxygen to produce carbon dioxide. A lot of heat is also produced in this case, so this is exothermic reaction.

When is heated in absence of air, all the volatile material is removed from it and best quality of coal called coke is produced.

Coke is about 98%carbon, hence it is better fuel than coal because it produces more heat(than equal amount of coal) and it does not produce smoke while burning.....


hope its helps u...YO...@@

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