The material used to make anode and cathode of the commonly employed dry cells are

Options

A. aluminum and lead
B. zinc and carbon
C. an alloy of silver , copper and manganese
D. brass and a mixture of ammonium chloride and manganese

Answer

To determine the materials used to make the anode and cathode of commonly employed dry cells, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Dry Cells**:
- Dry cells are commonly used batteries found in devices like torches, toys, and calculators. They are based on the Leclanché cell design.

2. **Identifying the Anode**:
- In a dry cell, the anode is typically made of zinc. The zinc cylinder serves as the anode where oxidation occurs during the electrochemical reaction.

3. **Identifying the Cathode**:
- The cathode in a dry cell is made of a graphite rod, which is primarily composed of carbon. This rod serves as the site for the reduction reaction.

4. **Composition of the Cell**:
- The zinc cylinder is filled with a moist paste, which usually contains ammonium chloride and zinc chloride. The graphite rod is surrounded by a mixture of manganese dioxide and carbon powder.

5. **Conclusion**:
- Based on the materials identified, the anode is zinc and the cathode is carbon (graphite). Therefore, the correct answer is that the materials used to make the anode and cathode of commonly employed dry cells are zinc and carbon.

### Final Answer:
The materials used to make the anode and cathode of commonly employed dry cells are **zinc (anode)** and **carbon (cathode)**.

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