Q.

In the process of levigation, the principle involved is

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a

Difference in the boiling point of ore particles and impurities

b

Difference in the solubility of ore particle and impurities

c

Difference in the melting point of the ore particles and impurities

d

Difference in the specific gravity of ore particles  and impurities

answer is B.

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Detailed Solution

Levigation process also known as Hydraulic method or gravity separation method and the principles is based on the densities (specific gravity difference) between metallic ores and gangue particles. In this process, the powdered ore is treated with a stream on running water, in which the lighter gangue particles are washed away, and heavier ore particles are left behind.

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