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. | Bauxite | 1. | Froth floatation method |
B. | Haematite | 2. | Magnetic separation |
C. | Copper pyrites | 3. | hydraulic washing |
D. | Cassiterite | 4. | Leaching |
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