Question

Which variety of coal is used for domestic purposes?

Answer 1

Bituminous coal which is a little harder is used for steam-electric power generation. Anthracite, which is considered to be a metamorphic rock due to the extensive heat and pressure applied to this material for it to form, is hard coal, which has a shiny appearance.

Answer 2

Bituminus coal is used as it's harder and gives a lot of heat on burning.

It's cheap and easily transportable.

Anthracite is also used as it's cheap and one of the finest wuality of coal.