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Extraction of Metals

The impuritie...

Question

The impurities present in mined ores are technically calledand the process of removing them from the ore is calledof an ore.

A

gangue

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B

concentration

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C

metallurgy

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D

flux

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Solution

The correct option is B concentration
Gangue/matrix refers to the unwanted components or impurities such as rocky matter, earthing particles, sand, limestone, etc., present in the ores. The removal of gangue is known as concentration of the ore.

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The impurities present in mined ore are technically called

The impurities present in the mined ore are technically called ___ .

Q. Fill in the blanks with the correct choice.
The undesired impurities present in the ores are called ___(i)___. To remove the volatile impurities from the ore, the ___(ii)___ process is carried out. Flux combines with non-fusible impurities to form ___(iii)___.

C a O

acts as a ___(iv)___ flux.

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