Which of the following metals is extracted using silica lined convertor ?

Options

A. Mg
B. Al
C. Cu
D. Zn

Answer

To solve the question of which metal is extracted using a silica-lined converter, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Process**: The silica-lined converter is primarily used in the extraction of copper from its ores. The process involves the conversion of copper matte, which is a mixture of copper(I) sulfide (Cu2S) and iron(II) sulfide (FeS).

2. **Identify the Components**: In the silica-lined converter, the copper matte (Cu2S + FeS) is introduced. Here, FeS acts as an impurity or gangue.

3. **Reaction with Oxygen**: When the copper matte is subjected to high temperatures in the converter, the iron sulfide (FeS) reacts with oxygen (O2) to form iron oxide (FeO).

\[ 4FeS + 7O_2 \rightarrow 4FeO + 4SO_2 \]

4. **Formation of Slag**: The iron oxide (FeO) then reacts with the silica (SiO2) present in the converter to form a slag, which is iron silicate (FeSiO3).

\[ FeO + SiO_2 \rightarrow FeSiO_3 \text{ (slag)} \]

5. **Copper Oxide Formation**: Simultaneously, the copper sulfide (Cu2S) reacts with oxygen to form copper(I) oxide (Cu2O).

\[ 2Cu_2S + 3O_2 \rightarrow 2Cu_2O + 2SO_2 \]

6. **Reduction to Copper Metal**: The copper(I) oxide (Cu2O) then reacts with the remaining copper sulfide (Cu2S) to produce copper metal (Cu) and sulfur dioxide (SO2).

\[ Cu_2S + Cu_2O \rightarrow 4Cu + SO_2 \]

7. **Conclusion**: Through this series of reactions in the silica-lined converter, copper is extracted from its ore. Therefore, the correct answer to the question is copper.

### Final Answer:
The metal extracted using a silica-lined converter is **Copper**.