Question

differentiate between lignite and bituminous coal.

Answer 1

lignite coal has less carbon content and bituminous coal has high carbon content than lignite coal

Answer 2

Subbituminous coal does not have the same shiny luster as higher ranked coals. As the name suggests, it has lower carbon content than bituminous coal (35%-45%) and is primarily used for electricity generation1. ... Lignite is often called “brown coal” because it is lighter in color than the higher ranks of coal.