Question

2) What are the different types of coal ?what are their uses?​

Answer 1

Answer ❤️

There are four different types of coal.

They are peat , lignite, bituminous coal and anthracite. The ranking depends on the types and amount of carbon the coal contains and on the amount of heat and energy the coal can produce.

peat: It is the first step of coal formation. It has high water content and less than 60% carbon content.

Lignite : Lignite is a transformed form of peat and Has around 25-35% of carbon content. It is a low quality brown coal with very little percentage of carbon in it. It is however used in the generation of electricity.

Bituminous : It is the most commonly found variety of coal in India is bituminous and has a carbon content of 70 - 90%. It is used for almost all daily requirements of coal.

Anthracite : It is the best known variety of coal found in India. It has a carbon content of more than 80% which makes it suitable for iron smelting.

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Answer 2

Explanation:

Coal is formed due to the compression of plant and animal material over millions of years. (i) Peat has high moisture content and low heating capacity. (ii) Lignite is a low grade brown coal, soft and with high moisture content. (iii) Bituminous coal is buried deep and subject to high temperature.