Pure piece of metal which is used to be plated, is made the:

Options

A. anode
B. cathode
C. nematode
D. positrode

Answer

To solve the question, "Pure piece of metal which is used to be plated, is made the:", we need to understand the process of electroplating and the roles of different components involved.

### Step-by-Step Solution:

1. **Understand the Electroplating Setup**: In electroplating, we have a setup that includes an anode, a cathode, and an electrolyte solution. The anode is typically made of the metal that will be plated onto another surface.

2. **Identify the Roles of the Electrodes**:
- **Anode**: This is the electrode where oxidation occurs. In the context of electroplating, the anode is often made of the metal that is being deposited onto the object to be plated.
- **Cathode**: This is the electrode where reduction occurs. The object that is being plated is connected to the cathode.

3. **Determine What the Question is Asking**: The question specifically asks about the "pure piece of metal which is used to be plated." This refers to the metal that is being deposited onto another surface.

4. **Conclusion**: In electroplating, the pure piece of metal that is used to be plated is connected to the cathode. However, the metal that is being dissolved to provide the plating material is at the anode. Therefore, the pure piece of metal that is used to be plated is made of the **cathode**.

5. **Final Answer**: The pure piece of metal which is used to be plated is made of the **cathode**.