Name the substance used as depressant in the separation of two sulphide ores in Froth floatation method.

How do we separate two sulphide ores by froth floatation method?

Explain the purification of sulphide ore by Froth Floatation Method.

In froth-floatation process, what is the depressant used in the separation of sulphide ores of zinc and lead?

Name the depressant used in separation of ZnS from PbS by froth floatation process.

Find the correlation in the given pair and rewrite the answer: Sulphide ores : Froth floatation method :: Cassiterite ore : …………….