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Question

Coal gas is mixture of:

A
CH4+H2+CO2+H2S
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B
CH4+H2+CO+H2S
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C
CH4+H2+CO
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D
ethane, propane, butane
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Solution

The correct option is C CH4+H2+CO
Coal gas, gaseous mixture—mainly hydrogen (H2), methane (CH4), 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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