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Which one of the following ores is best ...

Which one of the following ores is best concentrated by froth flotation method:

A

Galena

B

Cassiterite

C

Magnetite

D

Malachite

Text Solution

Verified by Experts

The correct Answer is:
A
Here only Galena is `PbS` (a sulphide ore).
Cassiterite is `SnO_(2)`(oxide ore). Magnetic is `Fe_(3)O_(4)`(oxide ore) and Malachite is `Cu(OH)_(2).CuCO_(3)`(carbonate ore). The froth floatation process is used to concentrate sulphide ores, based on preferntial wetting properties with frothing agent and water.
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