Home Chemistry General Principles and Processes of Isolation of Elements ( Not In Syllabus ) General In the metallurgy of iron, the upper layer o…
Chemistry General Principles and Processes of Isolation of Elements ( Not In Syllabus ) General Single Correct MCQ
Published on: August 13, 2026

In the metallurgy of iron, the upper layer obtained in the bottom of blast furnace mainly contains:

A
CaSiO3
B
Spongy iron
C
Fe2O3
D
FeSiO3

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Text Solution

Verified by Experts
The correct answer is:
A

CaO + SiO2 —® CaSiO3 (slag) (Haematite ore contains silica as impurities).

Slag being lighter and insoluble in molten metal floats over and thus forms upper layer.

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