The process of roasting of an ore is carried out in the [BHU 1999]

1.	The process of roasting of an ore is carried out in the [BHU 1999]
A.	Absence of air
B.	Presence of air
C.	Limited supply of air
D.	None of these
Answer» C. Limited supply of air

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The process of roasting of an ore is carried out in the [BHU 1999]

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