Sulphide ores of metals are usually concentrated by froth flotation pr – McqOptions

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1.	Sulphide ores of metals are usually concentrated by froth flotation process. Which one of the following sulphide ores offer an exception and is concentrated by chemical leaching?
A.	Galena
B.	Copper pyrite
C.	Sphalerite
D.	Argentite
Answer» E.

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