Which of the following methods is used for th | vedclass

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(A) The process of removing gangue (impurities like sand,soil,etc.) from the ore is known as concentration of ore or ore dressing.Common methods for c

Vedclass · Accepted Answer

Centrifugation

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(A) The process of removing gangue (impurities like sand,soil,etc.) from the ore is known as concentration of ore or ore dressing.Common methods for concentration include hydraulic washing,magnetic separation,froth flotation,and leaching.$A$. Centrifugation is a physical method used for separation based on density,which is often employed in the concentration of ores.$B$. Calcination is a process of heating ore in the absence of air to remove volatile impurities and moisture.$C$. Roasting is a process of heating sulfide ores in the presence of excess air.$D$. Chemical reduction is used to extract metal from the concentrated ore.Therefore,centrifugation is a method used for the concentration of ore.

Which of the following methods is used for the concentration of ore?

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