Which of the following is the highest quality coal?

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Lignite

Bituminous

Anthracite

None of these

answer is C.

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Detailed Solution

Anthracite is the highest quality hard coal. It is a hard, brittle, shiny black coal with a high proportion of bound carbon and a low proportion of volatiles. It has the highest carbon content, the lowest impurities, and the highest energy density of all types of coal, making it the highest-ranked coal. Most anthracite has a lower calorific value than the highest-quality hard coal. Anthracite is mainly used for home heating and gas production. Some semi-charcoal tones are dark but softer than charcoal. This variety has glossy grey colour with a slightly grainy texture. Coal occurs in two rock series in India. Gondwana's most important geological age is more than 200 million years ago. The main resource of Gondwana coal, which is coal for metallurgy, is Located in the Damodar valley (West Bengal, Jharkhand). Jharia, Raniganj, Godavari, Mahanadi, Son, and Walda Valley include coal deposits.

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