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Froth flotation process used for the con...

Froth flotation process used for the concentration of sulphide ore.

A

Is based on the difference in wettability of different minerals

B

Uses sodium ethyl xanthate, `C_(2)H_(5)OCS_(2)Na` as collector

C

Uses `NaCN` as depressant in the mixture of `ZnS` and `PbS` where `ZnS` forms soluble complex and `PbS` forms froth

D

all are correct statements

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The correct Answer is:
D
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