Coal and its Types
Coal and its Types: Overview
This Topic covers sub-topics such as Coal, Coke, Types of Coal, Coal Tar, Uses of Coal, Anthracite Coal, Bituminous Coal, Carbonisation, Destructive Distillation of Coal, Lignite Coal, Sub-Bituminous Coal, Products of Coal and, Uses of Coal Tar
Important Questions on Coal and its Types
How sub-bituminous coal is formed by metamorphism?
Sub bituminous coal is _____ that has been subjected to metamorphism.
Sub-bituminous coal is a lignite that has been subjected to an increased level of organic metamorphism.
How sub-bituminous coal is formed?
Coal can be extracted in _____ ways depending on the depth of the coal bed.(write in words)
What do you mean by underground mining of coal?
Coal can be extracted in two ways depending on the depth of the coal bed.
What do you mean by surface mining of coal?
There are _____ types of coal found in the world.
There are four types of coal and anthracite is the highest grade coal.
What are the different types of coal found in the world?
What is the percentage of carbon in anthracite coal?
The USA is one of the biggest producers of coal in the world, is it true? Explain.
The USA is the rd biggest producer of _____ in the world.
The USA is one of the biggest producers of coal in the world.
Does the USA produce coal? Which are the largest coal-producing states in the USA?
Write any two uses of coal tar.
The coal used in the steam-electric power generation is _____.
The coal primarily used as a fuel for steam-electric power generation is:
Coal tar is almost _____ in water.
