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Which of the following coal is used widely in the world?

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in Engineering Chemistry II by (789k points)
Which of the following coal is used widely in the world?

(a) Peat

(b) Lignite

(c) Bituminous

(d) Anthracite

I got this question in an interview for internship.

Question is taken from Solid Fuels in chapter Fuels and Combustion of Engineering Chemistry II

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Best answer
Correct choice is (c) Bituminous

Explanation: The largest deposits are of bituminous coal in the earth, its extraction is easier than that of anthracite coal and it does have a moderate ignition temperature. Lignite deposits are also present in large quantities but its ignition temperature is low and that of peat in extremely low.

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