Question : Which of the following coals contains ninety per cent carbon?
Option 1: Anthracite
Option 2: Bitumen
Option 3: Lignite
Option 4: Peat
Correct Answer: Anthracite
Solution : The correct answer is Anthracite.
- Anthracite contains the most carbon of any coal, ranging from 86% to 97%. It is also known as hard coal, and it has a lot of energy.
- Bitumen contains 45% to 86% carbon. It is a type of coal widely used in power generation and industry.
- Peat has a low carbon concentration, often about 50% or less. It is not regarded as real coal because it is still in the early stages of coal production.
- Lignite contains between 25% and 35% carbon. It is also known as brown coal and has a lower energy content than the other types.
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