Electrolyte used in Ni - Cd cell

Options

A. KOH
B. `H_2SO_4`
C. `LiOH`
D. `Al_2O_3`

Answer

To determine the electrolyte used in a nickel-cadmium (Ni-Cd) cell, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Components of a Ni-Cd Cell**:
- A nickel-cadmium cell consists of two electrodes: nickel oxide hydroxide (positive electrode) and metallic cadmium (negative electrode).

2. **Identify the Type of Electrolyte**:
- The electrolyte in a battery is crucial as it facilitates the movement of ions between the electrodes during the discharge and charge processes.

3. **Recall Common Electrolytes**:
- Common electrolytes used in batteries include sulfuric acid (H2SO4), lithium hydroxide, aluminum oxide, and alkaline solutions.

4. **Determine the Specific Electrolyte for Ni-Cd Cells**:
- Nickel-cadmium cells specifically use an alkaline electrolyte.

5. **Identify the Alkaline Electrolyte**:
- Among the common alkaline electrolytes, potassium hydroxide (KOH) is widely recognized as the electrolyte used in nickel-cadmium batteries.

6. **Conclusion**:
- Therefore, the correct answer is that potassium hydroxide (KOH) is the electrolyte used in a nickel-cadmium cell.

### Final Answer:
The electrolyte used in a Ni-Cd cell is **Potassium Hydroxide (KOH)**.

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