Percentage of methane in coke oven gas may be around _____________________?
Percentage of methane in coke oven gas may be around _____________________?
		A. 5
B. 15
C. 25
D. 50
		A. 5
B. 15
C. 25
D. 50
		A. Fast & high
B. Slow & low
C. Slow & high
D. Fast & slow
		A. Iron blast furnace
B. Cupola in foundries
C. Sinter making
D. Domestic ovens
		A. MgO & Na2CO3
B. MgSO4 & BaCl2
C. BaSO4 & NaCl
D. MgCO3 & NaCl
		A. Vitrain
B. Clarain
C. Durain
D. Fussain
		A. 5
B. 50
C. 500
D. 5000
		A. Hydrolysis
B. Fermentation
C. Oxidation
D. Dehydration