Sulphide ores of metals are usually concentrated by froth floatation process. Which one of the following sulphide others offers an exception and is concentrated by chemical leaching ?

Sulphide ores of metals are usually concentrated by froth floatation p

1.	Sulphide ores of metals are usually concentrated by froth floatation process. Which one of the following sulphide others offers an exception and is concentrated by chemical leaching ?
Answer» Sphalerite Argentite Galena Copper pyrite. Solution :N//A