UPSC Prelims PYQ 1999: Which type of coal has the highest carbon...
Which one of the following types of coal contains a higher percentage of carbon than the rest?
- Bituminous coal
- Lignite
- Peat
- Anthracite
Explanation
Option (d) is correct
- Anthracite contains the highest percentage of carbon among all types of coal. It is the hardest and purest form of coal, burns with little smoke, and has the highest calorific value.
Answer: (d) Anthracite
