Gravity separation process is used for the concentration of _____________.

calamine

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haematite

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chalcopyrites

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bauxite

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Solution

The correct option is B haematite
Gravity separation process is used for the concentration of haematite. Gravity method is based on the difference between the densities of the ore particle and gangue. It is used for the concentration of denser ores from the water soluble and lighter impurities (gangue). Oxide ores and carbonate ores are concentrated by this method.

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