Question

In the metallurgy of iron, the upper layer obtained in the bottom of blast furnace mainly _______ .

• A. $CaSi{O}_3$
• B. Spongy iron
• C. $F{e}_2{O}_3$
• D. $FeSi{O}_3$

Answer 1

The correct option is A $CaSi{O}_3$

The upper layer obtained in the bottom of blast furnace mainly consists of calcium silicate which is formed when calcium oxide reacts with silica and silicates to form slag.

Hence the correct answer is option A