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Q.

During extraction of iron, Which of the following act as a flux:

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a

silica

b

calcium silicate

c

lime stone

d

coke

answer is C.

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Detailed Solution

During the extraction of iron, limestone act as a flux.

Because limestone breaks down in a hot furnace to produce calcium oxide and carbon dioxide, it is utilized as a flux in the extraction of iron. To create fusible calcium silicate slag, silica and the produced calcium oxide mix as a flux. Hence, option C is correct.

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During extraction of iron, Which of the following act as a flux: