railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test General Knowledge Indian Geography Indian Economic and Human Geography
Coal is a fossil fuel used for the generation of electricity and heat. Which of the following is the highest rank of coal and has a carbon content of over 87% on a dry ash-free basis?
1
Anthracite
2
Peat
3
Semi-Bituminous
4
Lignite