Which among the following coal contains 90 per cent of carbon? A. Anthracite B. Bitumen C. Lignite D. Peat

Anthracite is the most mature type of coal, and it contains the highest percentage of carbon, up to 90%. Bituminous coal contains 70-80% carbon, lignite contains 60-70% carbon, and peat contains 50-60% carbon.

Anthracite is a hard, black coal that is used primarily as a fuel for power plants. It is the most expensive type of coal, but it also has the highest energy content. Bituminous coal is a soft, brown coal that is used primarily for generating electricity and making steel. Lignite is a soft, brown coal that is used primarily for generating electricity. Peat is a soft, brown coal that is used primarily for making fertilizer and landscaping materials.