Q.

Highest percentage of carbon is found in which form of coal?

A. Anthracite
B. Bituminous
C. Peat
D. Lignite
Answer» A. Anthracite
Explanation: Anthracite is the highest rank of coal since it has a carbon content of over 87% on a dry ash-free basis. Anthracite coal generally has the highest heating value per ton on a mineral-matter-free basis. It has a bright luster and breaks with a semi-conchoidal. fracture.
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