Sulphide ores of metals are usually concentrated by froth floatation p – InterviewSolution

1.	Sulphide ores of metals are usually concentrated by froth floatation process. Which one of the following sulphide ores offers an exception and is concentrated by chemical leaching?
Answer» Galena COPPER pyrite Sphalerite Argentite Solution :`SiO_2` is present as impurity in metallurgy of Fe. So `CAO` is used as a flux, which COMBINE with `SiO_2` and FORM slag. `underset("Flux")(CaO) + underset("Impurity")(SiO_2) to underset("Slag")(CaSiO_3)`

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