Which one of the following ores is best ...

Which one of the following ores is best concentrated by froth flotation method:

A

Galena

B

Cassiterite

C

Magnetite

D

Malachite

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The correct Answer is:

A

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ALLEN-METALLURGY-EXERCISE-05 [A]

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The metal that cannot obtained by electrolysis of an aqueous solution ...
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Extraction of copper by smelting uses silica as an additive to remove:
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