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Q.

Which of the following benefication process is used for the mineral Al2O3.2H2O?

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a

Froth flotation

b

Liquation

c

Leaching

d

Magnetic separation

answer is C.

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Detailed Solution

Leaching: It involves treatment of ore with leaching agents (like NaOH, NaCN, KCN or other reagents) due to which ore becomes soluble and their impurities remain insoluble. The leaching process is basically done in the extraction of Al from Al2​O3​.2H2​O (Alumina).
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Which of the following benefication process is used for the mineral Al2O3.2H2O?