© examsiri.com
Question : 96 of 101
Marks:
+1,
-0
Solution:
The correct answer is
anthracite.
- Coal is classified mainly into three types lignite, bituminous, and anthracite.
- Anthracite - It is considered to be the highest quality coal as it contains 94 to 98 per cent carbon content.
- Bituminous - It contains 78 to 86 per cent carbon content. It is a solid sedimentary rock, which is black or dark brown in colour.
- Lignite - It contains 28 to 30 per cent carbon content. It is used to generate electrical energy.
- This coal is brown in colour.
- Peat - This is the first step in the formation of coal. It has less than 27 per cent of carbon content.
- Peat deposits are gradually changed to lignite coal.
© examsiri.com
Go to Question: