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Extraction of Iron

During the ex...

Question

During the extraction of haematite, limestone is added, which acts as:

A

flux

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B

slag

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C

reducing agent

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D

gangue

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Solution

The correct option is D flux
During the extraction of haematite, limestone is added which acts as 'flux'. Limestone is also decomposed to $C a O$ which removes silicate impurity of the air as slag.

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