Question

The most superior industrial coal of West Bengal is of
1. Lignite variety
2. Anthracite variety
3. Bituminous variety
4. None of the above

Answer 1

Correct Answer - Option 3 : Bituminous variety

The correct answer is Bituminous variety

• Black coal or Bituminous coal is relatively soft coal containing a tarlike substance called bitumen or asphalt.
• Bituminous coal is of higher quality than lignite and Sub-bituminous coal, but of poorer quality than anthracite.
• This type of coal (Bituminous coal) is an organic sedimentary rock formed by diagenetic and sub metamorphic compression of peat bog material.
• The carbon content of bituminous coal is around 45-86 percent, the rest is composed of air, water, hydrogen, and sulfur.
• Coal is black sedimentary rock mostly carbon with variable amounts of other elements, chiefly sulfur, hydrogen, oxygen, and nitrogen.
• Jharkhand in India is the largest producer of Coal.
• India is the 2nd biggest producer of Coal in the world.
• Chinakuri, West Bengal is the deepest coal mine in India.

• Lignite:-
  • Lignite is a brown, soft, combustible, sedimentary rock formed from naturally compressed peat.
  • It has a carbon content of around 25 to 35 %.
  • Lignite is considered the lowest rank of coal due to its relatively low heat content.
  • Lignite is used almost exclusively as a fuel for steam-electric power generation.
• Anthracite:-
  • Anthracite is also known as hard coal.
  • Anthracite is a hard, compact variety of coal that has a submetallic luster.
  • Anthracite has the highest carbon content.
  • It is the highest-ranking of coals.
  • It is found in India only in Jammu and Kashmir.