In the extraction of iron, the waste gas from the furnace is a mixture of
-
A.
PH3 CO and CO2 -
B.
CO and C -
C.
N2 , CO and CO2 -
D.
PH3 and CO
Correct Answer: Option C
Explanation
the (N_2) from the hot air blast to burn the coke (48%), the (CO) (23%) and (CO_2) (21%) produced from the reduction of the iron ore (Fe_{2}O_{3}) by carbon (the coke) are the major components of the waste from the extraction.
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