In the electrolytic cell, flow of electrons is form :

Options

A. Cathode to anode in solution
B. Cathode to anode through external supply
C. Cathode to anode through internal supply
D. Anode to cathode through internal supply

Answer

To solve the question regarding the flow of electrons in an electrolytic cell, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Electrolytic Cell**:
- An electrolytic cell is a device that converts chemical energy into electrical energy. It consists of two electrodes: the anode and the cathode.

2. **Identifying the Electrodes**:
- In an electrolytic cell:
- The **cathode** is the electrode where **reduction** occurs (gain of electrons).
- The **anode** is the electrode where **oxidation** occurs (loss of electrons).

3. **Direction of Current Flow**:
- In an electrolytic cell, the flow of current is defined as the flow of positive charge. Therefore, the current flows from the **anode to the cathode**.

4. **Direction of Electron Flow**:
- Since electrons carry a negative charge, they flow in the opposite direction to the current. Thus, in an electrolytic cell, the flow of electrons is from the **cathode to the anode**.

5. **External Supply**:
- The flow of electrons in an electrolytic cell is facilitated by an external power supply. This power supply drives the electrons from the cathode to the anode.

6. **Conclusion**:
- Based on the above analysis, the correct answer to the question is that in an electrolytic cell, the flow of electrons is from the **cathode to the anode through an external supply**.

### Final Answer:
The correct option is **Option 2: cathode to anode through external supply**.

---