Heating of ore in presence of air to remove sulphur impurities is call

1.	Heating of ore in presence of air to remove sulphur impurities is called [AFMC 2005]
A.	Calcination
B.	Roasting
C.	Smelting
D.	None of these
Answer» C. Smelting

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Heating of ore in presence of air to remove sulphur impurities is called [AFMC 2005]

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