Q19 of 52 Page 80

Common impurities present in bauxite are ____________.

The principle ore of aluminium bauxite usually contain Fe2O3 and SiO2 as the common impurities.

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Which of the following statements is correct about the role of substances added in the froth floation process?

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In the Froth Floatation process, zinc sulphide and lead sulphide can be separated by ______________.

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Which of the following ores are concentrated by froth floation?

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Which of the following reactions occur during calcination?