The role of depressants in 'Froth Flotation method' is to
Solution
Depressant prevent one component from coming to
the froth.<br/><br/>
For eg., in Galena ore, the depressant (NaCN)
prevents impurity (ZnS) from coming to the froth.
About this question
Subject: Chemistry · Chapter: p-Block Elements · Topic: Group 13: Boron Family
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