The composition of 'copper matte' is

Options

A. ` Cu_2S+FeS`
B. `Cu_2 S + Cu_2O `
C. `Cu_2S + FeO `
D. `Cu_2O + FeS `

Explanation

### Step-by-Step Text Solution:

1. **Understanding Copper Matte**:
Copper matte is an intermediate product in the extraction of copper from its ores. It primarily contains copper sulfide and iron sulfide.

2. **Composition of Copper Matte**:
The main components of copper matte are:
- Copper(I) sulfide (Cu₂S)
- Iron(II) sulfide (FeS)

3. **Chemical Representation**:
The chemical formula for copper matte can be represented as:
\[ \text{Cu}_2\text{S} + \text{FeS} \]
This indicates that copper matte is a mixture of these two sulfides.

4. **Formation Process**:
Copper matte is formed during the smelting process of copper ores, such as chalcopyrite (CuFeS₂). When heated in the presence of oxygen, the sulfide minerals are converted into copper matte, along with the release of sulfur dioxide (SO₂) gas.

5. **Summary of Composition**:
Therefore, the composition of copper matte can be summarized as:
\[ \text{Copper Matte} = \text{Cu}_2\text{S} + \text{FeS} \]