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General Principles and processes of Isolation of Elements
easy
The role of depressants in Froth Flotation method* is to ..... .
A
selectively prevent one component of the ore from coming to the froth.
B
reduce the consumption of oil for froth formation.
C
stabilize the froth.
D
enhance non-wettability of the mineral particles.
(JEE MAIN-2022)
Solution
Depressant prevent one component from coming to the froth.
For eg., in Galena ore, the depressant ( $NaCN )$ prevents impurity $( ZnS )$ from coming to the froth.
Standard 12
Chemistry
