Question

The chemical formula of haematite is:

• A. $\text{FeO}$
• B. ${\text{Fe}}_2{\text{O}}_3$
• C. ${\text{Fe}}_3{\text{O}}_4$
• D. ${\text{Fe}}_3{\text{O}}_7$

Answer 1

The correct option is B ${\text{Fe}}_2{\text{O}}_3$

Minerals from which metals can be extracted, conveniently and economically are called ores. Haematite and magnetite are ores of iron. The chemical formula of haematite is ${\text{Fe}}_2{\text{O}}_3$.