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In the froth floatation process for the purification of minerals the particles float because

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In the froth floatation process for the purification of minerals the particles float because
A. they are insoluble
B. their surface is preferentially wetted by oil
C. they are light
D. they bear an electrostatic charge
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Correct Answer - B
In the froth floatation process for the purification of minerals, the particles float because their surface is preferentially wetted by oil .
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