Copper matte consists of:-

Options

A. Copper oxide and ferrous sulphide
B. Copper sulphide and ferrous oxide
C. Copper sulphide and ferrous sulphide
D. Copper oxide and ferrous oxide

Answer

To answer the question "Copper matte consists of:", we need to analyze the options provided and understand the composition of copper matte in the context of metallurgy.

### Step-by-Step Solution:

1. **Understanding Copper Matte**:
- Copper matte is an intermediate product in the extraction of copper from its ores. It is formed during the smelting process.

2. **Analyzing the Options**:
- The options given are:
1. Copper oxide and ferrous sulphide
2. Copper sulphide and ferrous oxide
3. Copper sulphide and ferrous sulphide
4. Copper oxide and ferrous oxide

3. **Identifying the Correct Composition**:
- Copper matte primarily consists of **copper(I) sulfide (Cu2S)** and **iron(II) sulfide (FeS)**.
- This means that the correct option is **Copper sulphide and ferrous sulphide**.

4. **Explanation of Formation**:
- During the smelting process in a reverberatory furnace, copper ores are heated, and the iron sulfide present in the ore gets oxidized to iron oxide.
- The iron oxide then reacts with silica to form iron silicate, which is removed as slag.
- The remaining copper sulfide reacts with oxygen to form copper oxide and sulfur dioxide gas.
- The copper oxide can then react with remaining copper sulfide to produce copper matte.

5. **Conclusion**:
- Therefore, the correct answer to the question is that copper matte consists of **copper sulphide and ferrous sulphide**.

### Final Answer:
Copper matte consists of **Copper sulphide and ferrous sulphide**.

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