Percentage of methane in coke oven gas may be around _____________________?
Correct answer: C. 25
- A. 5
- B. 15
- C. 25
- D. 50
Explanation
Coke-oven gas commonly contains roughly 20 to 30% methane, along with hydrogen, carbon monoxide, and other gases. Therefore, about 25% is the suitable estimate.
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