Rajat wants to coat a metal 'X' with a metal 'Y'. He takes 'X' as the cathide and 'Y' as the anode in an electrolytic cell. Which metal's salt solution should he as an electrolyte?

Options

A. X
B. Y
C. Neither X nor Y
D. A mixture of X and Y

Answer

To solve the question, we need to determine which metal's salt solution Rajat should use as an electrolyte to coat metal 'X' with metal 'Y' in an electrolytic cell.

### Step-by-Step Solution:

1. **Identify the Electrodes**:
- In the given scenario, metal 'X' is used as the cathode (negative electrode), and metal 'Y' is used as the anode (positive electrode).

2. **Understand the Role of the Electrolyte**:
- The electrolyte is a solution that contains ions. When an electric current passes through the electrolyte, it dissociates into positive and negative ions.

3. **Determine the Coating Process**:
- During the electrolysis process, metal ions from the electrolyte will move towards the cathode (metal 'X') and will get deposited on it. This is where the coating occurs.

4. **Choose the Right Electrolyte**:
- To coat metal 'X' with metal 'Y', the electrolyte must contain the salt of metal 'Y'. This is because the metal ions from the electrolyte need to be available to deposit on the cathode.

5. **Conclusion**:
- Therefore, Rajat should use a salt solution of metal 'Y' as the electrolyte. This will allow the metal ions of 'Y' to move towards the cathode (metal 'X') and deposit on it, resulting in the coating of 'X' with 'Y'.

### Final Answer:
Rajat should use the salt solution of metal 'Y' as the electrolyte.

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