Question

Sulphide ores are concentrated only by froth floatation

Answer 1

Answer:

Only sulphide ores are concentrated by froth flotation process because pine oil selectively wets the sulphide ore and hence brings it to the froth. The sulphide ores preferably wetted by the oil and the gangue with the water.

Answer 2

Answer:

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Explanation:

sulphide ores are concentrated only by froth flotation method.The principle is

they are preferentially wetted by the pine oil whereas the gangue particles are wetted by water .The oil selectively wets the sulphide ore only not the gangue. So the method used is froth flotation....