Coal is a complex mixture of carbon, hydrogen and oxygen compounds.
Nitrogen, sulfur and phosphorus compounds are also present in it.
It is found in coal mines deep under the surface of earth.
It is naturally occurring black material. It is a major source of energy.
Uses of coal are as follows :
It is used as a fuel for heating purposes in homes and industry.
Coal is one of the fuels used to cook food.
It is used to make coke, fuel gasses like coal gas, synthetic petrol and synthetic natural gas.
Final answer : Coal is a complex mixture of carbon, hydrogen and oxygen compounds, It is majorly used as a fuel for heating purposes in homes and industry