Question

Which is the highest heat producing grade of coal?

Answer 1

anthracite ,bitaminous,subbitaminous, lignite

Answer 2

Anthracite is a variety of coal which consists of low sulphur and high carbon. It is considered as the topmost rank of the coal.

The moisture content of anthracite is generally below 15 %. It is highest hat producing grade of coal. The Anthracite is the purest form of coal.