With increase in the temperature of carbonisation of coal ___________________?

A. pensated by increase in CO & H2 content

B. Methane content in the coke oven gas decreases and carbon monoxide content increases

C. Calorific value of the coke oven gas decreases due to cracking of hydrocarbons which is not

D. Hydrogen content of coke oven gas increases due to cracking of hydrocarbons

E. All A., B. and C.

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