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  • Ores with iron impurities are mixed with silica before heating to remove it as Option: 1 <img alt="\mathrm{FeO_{2}}" src="https://entrancecorner

Ores with iron impurities are mixed with silica before heating to remove it as 

Option: 1

\mathrm{FeO_{2}}


Option: 2

\mathrm{FeS}


Option: 3

\mathrm{FeSiO_{3}}


Option: 4

\mathrm{FeSiO_{4}}


Answers (1)

best_answer

Iron impurities in an ore can be removed by mixing silica to it before heating.

During roasting, the FeO reacts with \mathrm{SiO_{2}} to form \mathrm{FeSiO_{3}}, which is well known as slag

\mathrm{FeO}+\mathrm{SiO}_3 \rightarrow \mathrm{FeSiO}_3(\mathrm{Slag})

Posted by

Shailly goel

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