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

solubility properties

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wetting properties

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weight

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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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