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Flux and Slag MCQ - Practice Questions with Answers

Edited By admin | Updated on Sep 25, 2023 25:23 PM | #NEET

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The following reactions take place in the blast furnace in the preparation of impure iron. Identify the reaction pertaining to the formation of the slag.

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Flux and Slag

Flux:
A chemical substance which combines with the impurities present in the roasted or calcined ore to form an easily fusible material.

\mathrm{Fl} \mathrm{u} \mathrm{x}\: +\text {Impurity} \rightarrow \text {Slag }

Slag:
The fusible material formed by the reaction of flux and gangue.

\mathrm{FeO}+\mathrm{SiO}_{2} \rightarrow \mathrm{FeSiO}_{3}\mathrm{FeO}+\mathrm{SiO}_{2} \rightarrow \mathrm{FeSiO}_{3}\: (\mathrm{slag})

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