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Question

The principle behind froth floatation method involves the difference in the ________of the ore and the gangue particles.


A

solubility properties

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B

wetting properties

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C

weight

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D

specific gravity

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Solution

The correct option is B

wetting properties


Froth floatation process depends on the wetting property of both ore particles and impurities. It is used for the concentration of sulphide ores.

Ore particles along with impurities is poured into a mixture of oil and water.

Ore particles are wetted by oil and floats as froth.

Gangue particles is wetted by water and it settles down.


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