Which of the following ores is/are concentrated by froth floatation?

Haematite

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Galena

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Copper pyrite

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Azurite

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Solution

The correct options are
B Galena
C Copper pyrite
Froath floatation is applied for the concentration of sulphide ores.
Galena ( $P b S$ ), zinc blende ( $Z n S$ ) and copper pyrites ( $C u F e S_{2}$ ) are concentrated by froth floatation.

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Which one of the following ores is best concentrated by froth floatation method ?

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