Which is a copper matte?

Options

A. `Cu_2O + FeS`
B. `Cu_2S + FeO`
C. `Cu_2S + FeS `
D. `Cu_2O + FeO `

Answer

### Step-by-Step Solution:

1. **Understanding Copper Matte**: Copper matte is an intermediate product in the extraction of copper. It primarily consists of copper sulfide (Cu₂S) and iron sulfide (FeS).

2. **Composition of Copper Matte**: The chemical formula for copper matte can be represented as a mixture of Cu₂S and FeS. This means that in the copper matte, both copper and iron sulfides are present.

3. **Role in Copper Extraction**: Copper matte is formed during the smelting process of copper ores. It is typically produced after the concentration of copper ores and is an important step before the final extraction of pure copper metal.

4. **Reduction Process**: The next step after obtaining copper matte is the reduction process, where copper matte is heated in the presence of a reducing agent to produce metallic copper. This is a crucial step in the overall process of copper extraction.

5. **Identifying the Correct Option**: Given the options, the correct representation of copper matte is the one that states it is a mixture of Cu₂S and FeS.

### Final Answer:
Copper matte is a mixture of copper sulfide (Cu₂S) and iron sulfide (FeS).

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