Copper pyrites are concentrated by [MNR 1995; UPSEAT 1999; AMU 1999; M

1.	Copper pyrites are concentrated by [MNR 1995; UPSEAT 1999; AMU 1999; MP PMT 2003]
A.	Electromagnetic method
B.	Gravity method
C.	Froth floatation process
D.	All the above methods
Answer» D. All the above methods

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Copper pyrites are concentrated by [MNR 1995; UPSEAT 1999; AMU 1999; MP PMT 2003]

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