Write the correct alternatives : In the Wilfley table method, the particles of gangue are separated by...................separation method.
A
Magnetic
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B
Froth floatation
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C
Hydraulic
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D
Gravitational
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Solution
The correct option is C Hydraulic Hydraulic Washing :
In this method by flowing the powdered ore in a current of water, lighter rocky impurities can be washed away, for this, either wilfley table or Hydraulic classifier is used.