question_answer

Before introducing \[FeO\]in blast furnace , it is converted to \[F{{e}_{2}}{{O}_{3}}\] by roasting so that

A) it may not be removed as slag with silica

B) it may not evaporate in the furnace

C) presence of it may increase the m.pt. of charge

D) None of these

Correct Answer: A

Solution :

[a] \[FeO\] is capable forming slag with \[Si{{O}_{2}}+FeO\to FeSi{{O}_{3}}\]