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The slag obtained during the extraction ...

The slag obtained during the extraction of copper from coper pyrites is composed mainly of

A

`Cu_2S`

B

`FeSiO_3`

C

`CuSiO_3`

D

`SiO_2`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the composition of slag obtained during the extraction of copper from copper pyrites, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding the Process**: The extraction of copper from copper pyrites (CuFeS2) involves several steps, including roasting and smelting. During smelting, impurities are removed, and slag is formed. 2. **Identifying the Components**: In the smelting process, iron (Fe) is one of the main impurities present in copper pyrites. When copper pyrites are heated, iron reacts with silica (SiO2) to form a slag. 3. **Chemical Reaction**: The reaction can be represented as: \[ \text{FeO} + \text{SiO}_2 \rightarrow \text{FeSiO}_3 \] Here, FeO (iron oxide) combines with SiO2 (silica) to produce FeSiO3, which is the slag. 4. **Conclusion**: Therefore, the slag obtained during the extraction of copper from copper pyrites is mainly composed of iron silicate, represented by the formula FeSiO3. 5. **Final Answer**: Based on the above reasoning, the correct option is **B** (FeSiO3).
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