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Question

Which of the following processes is not a physical process of concentrating an ore?


A

Levigation

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B

Magnetic separation

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C

Leaching

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D

Froth floatation

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Solution

The correct option is C

Leaching


Except leaching, in all the remaining options, physical properties of the ore or gangue are utilised for the process of concentration of ore and removing gangue from it. In leaching, the ore is treated with chemicals to separate it from gangue.


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