In dry cell carbon rod functions as :

Options

A. Anode
B. Cathode
C. A and B both
D. None of these

Explanation

**Step-by-Step Solution:**

1. **Understanding the Components of a Dry Cell:**
- A dry cell consists of various components including a carbon rod, electrolyte, and a zinc casing. The carbon rod is one of the key components.

2. **Identifying the Role of the Carbon Rod:**
- In a dry cell, the carbon rod is used to facilitate the flow of electric current. It plays a crucial role in the electrochemical reactions that occur within the cell.

3. **Defining Anode and Cathode:**
- In electrochemistry, the anode is the electrode where oxidation occurs, and it is considered to have a positive charge. The cathode is where reduction occurs and has a negative charge.

4. **Determining the Function of the Carbon Rod:**
- In the case of a dry cell, the carbon rod acts as the anode. This means it is where the oxidation reaction takes place, allowing electrons to flow out of the cell.

5. **Conclusion:**
- Therefore, in a dry cell, the carbon rod functions as the anode.

**Final Answer:**
In a dry cell, the carbon rod functions as an anode.

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