Question

Coal has__________varieties of which_____________ contains 80 percent of carbon.​

Answer 1

Answer:

Bituminous Coal. Soft coal; most widely available and used coal. Derives its name after a liquid called bitumen. 40 to 80 per cent carbon

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Answer 2

Answer:

coal has 3 varieties namely lignite,bituminous coal, and anthracite

the type of coal which has 80 % coal is: bituminous