STATEMENT-1 : `CuSO_(4)` acts as froth activator in froth floatation process. STATEMENT-2 :
Channel: Doubtnut
Date: 2020-02-17

STATEMENT-1 : `CuSO_(4)` acts as froth activator in froth floatation process. STATEMENT-2 : Froth floatation method belong with benefecation of metallurgy. STATEMENT-3 : `NaCN` as depresent to form complex with `ZnS` out of `PbS` and `ZnS`.