The sulphide ores are converted into oxides by heating strongly in the presence of excess air. This process is known as
A. Roasting
B. Smelting
C. Calcination
D. Refining
Answer:A
The sulphide ores are converted into oxides by heating strongly in the presence of excess air. This process is known as
A. Roasting B. Smelting C. Calcination D. Refining
Explanation: The process of heating the sulphide ore strongly in the presence of air to convert it into metal oxide, is known as roasting.[Cu, Zn, Ag…..]