Question

The process involves smelting is

• A. Al₂O₃ · 2H₂O $\rightarrow$ Al₂O₃ + 2H₂O
• B. 2PbS + 3O₂ $\rightarrow$ 2PbO + SO₂
• C. 2ZnO₃ $\rightarrow$ ZnO + CO₂
• D. Fe₂O₃ + 3C $\rightarrow$ 2Fe + 3CO

Hint:

Smelting typically involves the reduction of metal oxides using a reducing agent such as carbon.

Answer 1

The Correct Option is D

Smelting is a process in which ore is heated with a reducing agent (like carbon) to extract metal.
In the case of iron ore, the correct reaction that represents smelting is: \[ \text{Fe}_2\text{O}_3 + 3C \rightarrow 2\text{Fe} + 3\text{CO} \] This is a reduction reaction where iron(III) oxide reacts with carbon to form iron and carbon monoxide.