12. Heating of coal in absence of air
results in the formation of
O (A) carbon dioxide.
O (B) coke, coal gas and coal tar.
(C) marsh gas.
O (D) carbon monoxide.
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Answer:
(B) coke, coal gas and coal tar.
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Answered by
1
Answer:
Coal gas, gaseous mixture—mainly hydrogen (H
2
), methane (CH
4
), and carbon monoxide (CO) — formed by the destructive distillation (i.e., heating in the absence of air) of bituminous coal and used as a fuel. Sometimes steam is added to react with the hot coke, thus increasing the yield of gas. Coal tar and coke are obtained as by-products.
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