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  4. In the manufacture of iron from hematite the function of lime stone is as

Q. In the manufacture of iron from hematite the function of lime stone is as

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Solution:

Lime stone is a flux. Ore contains some impurities which have high melting point.
Flux is used to remove these infusible impurities in the form of fusible slag.
Infusible impurities flux fusible slag
In the metallurgy of iron to remove the acidic impurity of present, a basic flux lime stone issued.