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  4. The method of concentrating the ore which makes use of the difference in density between ore and impurities is called

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Q. The method of concentrating the ore which makes use of the difference in density between ore and impurities is called

General Principles and Processes of Isolation of Elements

Solution:

Levigation is based on the difference in densities of the metallic ore and gangue particles. Powdered ore is treated with a stream of running water when the lighter gangue particles are washed away and heavier ore particles are left behind.