Question

What is low grade brown coal called

Answer 1

The low grade brown coal is called as Lignite

Answer 2

Low-grade Brown Coal is called Lignite.

Explanation:

• Lignite is combustible sedimentary rock that consists of natural compressed peat, and is often described as brown coal.

• It is soft and brown in colour.

• As it contain comparatively low heat content, it is regarded as the lowest rank of coal.

• It contains about 60% to 70% carbon content.

• Brown coal is mainly mined in Australia and is present in all countries in the era of Cenozoic.

• Lignite is often referred to as "brown coal" as it is color lighter than coal.

• It has the lowest carbon content in all ranks of coal (25%-35%)1 and high humidity and cracking appearance.

• It is used mainly in the production of electricity.

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