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Question

Which is an almost pure form of carbon?

A
Coke
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B
Coal tar
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C
Coal gas
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D
None of these
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Solution

The correct option is D Coke
Coke is a fuel with few impurities and a high carbon content, usually made from coal. It is the solid carbonaceous material derived from destructive distillation of low-ash, low-sulfur bituminous coal. Coal tar and coal gas contain more impurities than coke.

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