Question

Match the species in Column I with then corresponding methods of extraction / concentration in Column II.

Answer 1

Copper pyrites are extracted by electrolysis and concentrated by froth-flotation process.
Galena is concentrated by froth-flotation process.
Silver glance is extracted by electrolysis or by Mac-Arthur Forrest method.
It involves extraction by complex formation.
It is concentrated by froth-flotation process.
Corundum is extracted by electrolysis. It is concentrated by gravity separation.
Ilmenite is concentrated by magnetic separation or gravity separation .