Question

The main ore used for the extraction of iron is:

• A. Haematite
• B. Calamine
• C. Bauxite
• D. Cryolite

Answer 1

The correct option is A

Haematite

Explanation for the correct option:

(A) Haematite

Haematite is the main ore used in the extraction of iron having chemical formula ${\mathrm{Fe}}_2{\mathrm{O}}_3$.

Explanation for the incorrect option:

(B) Calamine

Calamine is the principle ore of zinc having chemical formula ${\mathrm{ZnCO}}_3$ used for extraction of zinc.

(C) Bauxite

Bauxite is the principle ore of aluminium with the chemical formula ${\mathrm{Al}}_2{\mathrm{O}}_3.2{\mathrm{H}}_2\mathrm{O}$ for extraction of aluminium.

(D) Cryolite

Cryolite is the one of aluminium having chemical formula ${\mathrm{Na}}_3{\mathrm{AlF}}_6$ in the extraction of aluminium.

Hence, The main ore used for the extraction of iron is Haematite.