1.

An ore contains PbS, ZnS, and FeS2, During separation of the three by froth flotation, the role ofCuSO_(4)

Answer»

To make Zns wettable by froth
To depress the FLOTATION of `FeS_(2)`
To react with excess NaCN
To stabilize ZnS in froth

Solution :An ore CONTAINS `Pbs, Zns and FeS_(2)`. During the separation of THREE by froth floatation the role of `CuSO_(4)` is to make ZnS wettable by froth.


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