The reason for floating of ore particles in concentration by froth floatation process is that they are

(a) light

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(b) soluble

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(d) hydrophobic

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Solution

The correct option is D
(d) hydrophobic

Hydrophilic: Water-loving species.
Hydrophobic: Species resistant to water.
Froth floatation: It is a concentration process used to separate hydrophobic materials from hydrophilic waste gangue.
So in the Froth floatation process ore is concentrated based on the hydrophobic nature.

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