12). It has a carbon content of around 86% a). Lignite b). Anthracite c). Bituminous d). None of these
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Answer:
It has the highest carbon content, the fewest impurities, and the highest energy density of all types of coal and is the highest ranking of coals. Anthracite is the most metamorphosed type of coal (but still represents low-grade metamorphism), in which the carbon content is between 86% and 98%.
Explanation:
answer is option B
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Answer:
d) None of these..
Explanation:
Lignite contains 25%–35% carbon and has the lowest energy content of all coal ranks. Lignite coal deposits tend to be relatively young and were not subjected to extreme heat or pressure. Lignite is crumbly and has high moisture content, which contributes to its low heating value.
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