In the electrolytic refining of Cu the cathode anode and the electrolyte are

Options

A. impure Cu-cathode, pure Cu-anode, acidified `CuSO_4` solution electrolyte
B. pure Cu-cathode, impure Cu-anode, acidified `CuSO_4` solution electrolyte
C. impure Cu-cathode, pure Cu-anode,`CuCl_2`-electrolyte
D. pure Cu-cathode, impure Cu-anode, `CuCl_2`-electrolyte

Answer

To answer the question regarding the components involved in the electrolytic refining of copper, we can break it down into the following steps:

### Step-by-Step Solution:

1. **Understanding Electrolytic Refining**:
- Electrolytic refining is a process used to purify metals, including copper. It involves the use of an electrolytic cell where an electric current is passed through an electrolyte solution.

2. **Identifying the Anode**:
- In the electrolytic refining of copper, the anode is made of impure copper. This impure copper dissolves into the electrolyte as the current passes through.

3. **Identifying the Cathode**:
- The cathode is made of pure copper. During the process, copper ions from the electrolyte are deposited onto the cathode, resulting in the growth of pure copper.

4. **Identifying the Electrolyte**:
- The electrolyte used in the electrolytic refining of copper is typically an acidified copper sulfate solution (CuSO4). This solution contains copper ions that facilitate the transfer of copper from the anode to the cathode.

5. **Summary of Components**:
- **Anode**: Impure copper (Cu)
- **Cathode**: Pure copper (Cu)
- **Electrolyte**: Acidified copper sulfate solution (CuSO4)

### Final Answer:
- In the electrolytic refining of copper:
- **Anode**: Impure copper
- **Cathode**: Pure copper
- **Electrolyte**: Acidified copper sulfate solution (CuSO4)