First slide
Occurrence
Question

Match the Column I with Column II and choose the correct option from the codes give below.

 Column I (Ore) Column II (Concentration method)
A.Bauxite1.Froth floatation method
B.Haematite2.Magnetic separation
C.Copper pyrites3.hydraulic washing
D.Cassiterite4.Leaching

Easy
Solution

Bauxite is soluble in suitable solvent, so concentrated by leaching.Haematite being heavier is concentrated by hydraulic washing. Copper pyrites is concentrated by froth
floatation method and cassiterite by magnetic separation A4,B3,C1,D2

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