What is the electrode called which is joined at -ve pole of the battery?

Options

A. Cathode
B. Electroplate
C. Ion
D. Anode

Explanation

**Step-by-Step Solution:**

1. **Understanding Electrodes**: In an electrochemical cell, there are two electrodes: the anode and the cathode.

2. **Identifying Battery Poles**: The battery has two terminals: a positive terminal and a negative terminal. The negative terminal is connected to one of the electrodes.

3. **Defining the Cathode**: The electrode that is connected to the negative terminal of the battery is called the cathode.

4. **Understanding Charge and Reactions**: At the cathode, reduction reactions occur, meaning that it gains electrons. In contrast, the anode, which is connected to the positive terminal, is where oxidation occurs, meaning it loses electrons.

5. **Conclusion**: Therefore, the electrode that is joined at the negative pole of the battery is called the **cathode**.

---