Explain the concentration of ore by Hydraulic Washing.
(N/A) $(i)$ Hydraulic Washing :
Principle : The method is based on the difference between the specific gravities of the ore and the gangue particles.
In hydraulic washing,an upward stream of running water is used to wash the powdered ore. The lighter gangue particles are washed away by the water current,while the heavier ore particles are left behind. This method is also referred to as Gravity Separation.
Principle : The method is based on the difference between the specific gravities of the ore and the gangue particles.
In hydraulic washing,an upward stream of running water is used to wash the powdered ore. The lighter gangue particles are washed away by the water current,while the heavier ore particles are left behind. This method is also referred to as Gravity Separation.
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Match the method of concentration of ore in Column $I$ with the ore in Column $II$.
$I$ (Method) $II$ (Ore) $(I)$ Magnetic separation $a. Cu_2S$ $(II)$ Froth flotation $b. FeCr_2O_4$ $(III)$ Gravity separation $c. Al_2(SiO_3)_3$
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| $(I)$ Magnetic separation | $a. Cu_2S$ |
| $(II)$ Froth flotation | $b. FeCr_2O_4$ |
| $(III)$ Gravity separation | $c. Al_2(SiO_3)_3$ |
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