Question

Chemical leaching is useful in the concentration of 

(a) copper pyrites 

(b) bauxite 

(c) galena 

(d) cassiterite

Answer 1

(b) bauxite 

Chemical leaching is useful in the concentration of bauxite.

Froth floatation method is used for copper pyrites.

Hydraulic Separation method depends upon the differences in the gravity of mineral and gangue.

This method is used for separating cassiterite from gangue.