During electrolytic refining of zinc, it gets

Options

A. deposited on cathode
B. deposited on anode
C. deposited on cathode as well as anode
D. remains in the solution

Explanation

**Step-by-Step Solution:**

1. **Understanding Electrolytic Refining**: Electrolytic refining is a process used to purify metals. In this process, an impure metal is made the anode, and pure metal is deposited at the cathode.

2. **Setting Up the Electrolytic Cell**: In the case of zinc, the impure zinc is placed at the anode, and a cathode is set up where pure zinc will be deposited. The electrolyte used is usually a solution of zinc sulfate (ZnSO4).

3. **Electrolysis Process**: When the electric current is passed through the electrolyte, zinc ions (Zn²⁺) from the solution migrate towards the cathode, which is the negative electrode.

4. **Reduction Reaction at the Cathode**: At the cathode, a reduction reaction occurs. The Zn²⁺ ions gain electrons (reduction) and are converted into pure zinc metal. The reaction can be represented as:
\[ \text{Zn}^{2+} + 2e^- \rightarrow \text{Zn (s)} \]
This means that for every two electrons, one zinc ion is reduced to form solid zinc.

5. **Deposition of Zinc**: As a result of this reduction, pure zinc is deposited on the cathode. This process continues until the desired purity of zinc is achieved.

6. **Conclusion**: Therefore, during electrolytic refining of zinc, pure zinc is deposited at the cathode.

**Final Answer**: During electrolytic refining of zinc, it gets deposited on the cathode.

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