Formation of metallic copper from the sulphide ore in the commercial metallurgical process involves.

Options

A. `Cu_(2)S+(3)/(2)O_(2) to Cu_(2)O+SO_(2), " " Cu_(2)O+C to 2Cu+CO`
B. `Cu_(2)S+(3)/(2)O_(2)to Cu_(2)O+SO_(2), " " 2Cu_(2)O+Cu_(2)S to 6Cu+SO_(2)`
C. `Cu_(2)S+2O_(2) to CuSO_(4), " " CuSO_(4)+Cu_(2)S to 3Cu+2SO_(2)`
D. `Cu_(2)S+(3)/(2)O_(2)to Cu_(2)O+SO_(2), " " Cu_(2)O+CO to 2Cu+CO_(2)`

Answer

To solve the question regarding the formation of metallic copper from the sulphide ore in the commercial metallurgical process, we will analyze the steps involved in the extraction process.

### Step-by-Step Solution:

1. **Identify the Sulphide Ore**: The primary sulphide ore of copper is chalcopyrite (CuFeS2) or copper(I) sulfide (Cu2S). For this process, we will consider copper(I) sulfide (Cu2S).

2. **Conversion of Sulphide to Oxide**: The first step in the metallurgical process is to convert the sulphide ore into an oxide. This is typically done by roasting the ore in the presence of oxygen:
\[ 2 \text{Cu}_2\text{S} + 3 \text{O}_2 \rightarrow 2 \text{Cu}_2\text{O} + 2 \text{SO}_2 \]
Here, copper(I) sulfide reacts with oxygen to produce copper(I) oxide (Cu2O) and sulfur dioxide (SO2).

3. **Reduction of Copper Oxide**: The next step involves reducing the copper oxide to obtain metallic copper. In the case of copper, it is important to note that carbon is not used for reduction. Instead, the reduction is typically achieved using copper(I) sulfide:
\[ \text{Cu}_2\text{O} + \text{Cu}_2\text{S} \rightarrow 4 \text{Cu} + \text{SO}_2 \]
Here, copper(I) oxide reacts with copper(I) sulfide to produce pure copper and sulfur dioxide.

4. **Final Products**: The final products of this process are pure metallic copper and sulfur dioxide.

5. **Conclusion**: Based on the above reactions, the correct option for the formation of metallic copper from sulphide ore in the commercial metallurgical process involves the conversion of copper sulfide to copper oxide and then the reduction of copper oxide to metallic copper.

### Correct Option:
The correct option is the one that states:
- Copper sulfide reacts with oxygen to form copper oxide and sulfur dioxide, followed by the reduction of copper oxide to pure copper.