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Chemical used as a depressant in separat...

Chemical used as a depressant in separatin ZnS from PbS in froth-floatation process , is

A

NaCN

B

NaCI

C

`BaC1_(2)`

D

`ZnSO_(4)`

Text Solution

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(a) PbS can be separated from ZnS in the presence of NaCN. It depresses the floatation property of ZnS by forming a complex `"Na"_(2)["Zn"("CN")_(4)].`
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