Q&A/Class 8/Science

Explain about the varieties of coal.

Class 8CBSEScienceChapter: Coal and Petroleum
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Depending upon the amount of carbon content, coal may be of four types:
  • Peat: This is the most inferior and softest form of coal. Its carbon content is very low. It has a large amount of moisture and is not much suitable to be used as fuel.
  • Lignite: Lignite is comparatively harder than peat, but still is very soft. Its carbon content is more than that of peat. Bituminous: Its carbon content is higher, as it is free from moisture and other impurities.
  • Anthracite: This is the highest-grade coal. This is also known as hard coal. It has maximum amount of carbon. It produces a very little smoke.

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