Coke oven gas burns with a yellowish flame, because of the presence of __________________?
Correct answer: B. CH4
- A. CO2
- B. CH4
- C. H2
- D. NH3
Explanation
Methane and other hydrocarbons produce glowing carbon particles in the flame, giving coke oven gas its yellowish luminosity. CO, hydrogen and ammonia burn with much less luminous flames, so methane is the relevant constituent.
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