Ore concentration by froth floatation utilises the ______________ of ore particles ?
Correct answer: D. Wetting characteristics
- A. Density difference
- B. None of these
- C. Terminal velocities
- D. Wetting characteristics
Explanation
Froth flotation separates particles according to their different surface wettabilities: hydrophobic particles attach to air bubbles and rise with the froth. Density difference is the basis of gravity separation, not flotation.
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