The amount of an ion liberated on an electrode during electrolysis does not depend upon:

Options

A. (a) conductance of the solution
B. (b) current strength
C. (c) time
D. (d) electrochemical equivalent of the element

Answer

To determine which factor does not affect the amount of an ion liberated on an electrode during electrolysis, we can analyze the situation using Faraday's laws of electrolysis.

### Step-by-Step Solution:

1. **Understanding Faraday's First Law of Electrolysis**:
According to Faraday's first law, the amount of substance (ion) liberated at an electrode during electrolysis is directly proportional to the quantity of electric charge (Q) passed through the electrolyte. This can be mathematically expressed as:
\[ W = Z \times Q \]
where:
- \( W \) is the weight of the ion deposited,
- \( Z \) is the electrochemical equivalent,
- \( Q \) is the electric charge.

2. **Relating Charge to Current and Time**:
The charge \( Q \) can also be expressed in terms of current (I) and time (T):
\[ Q = I \times T \]
Substituting this back into the equation gives us:
\[ W = Z \times I \times T \]
This indicates that the amount of ion liberated depends on the current (I), the time (T), and the electrochemical equivalent (Z).

3. **Identifying the Factors**:
Now, let’s analyze the factors that could affect the amount of ion liberated:
- **Current (I)**: The amount of ion liberated is directly proportional to the current.
- **Time (T)**: The amount of ion liberated is also directly proportional to the time.
- **Electrochemical Equivalent (Z)**: The amount of ion liberated depends on the electrochemical equivalent.
- **Conductance of the Solution**: This refers to the ability of the solution to conduct electricity but does not directly affect the amount of ion deposited at the electrode.

4. **Conclusion**:
Based on the analysis, the amount of an ion liberated on an electrode during electrolysis does not depend on the conductance of the solution. Therefore, the correct answer is the option that states "conductance of the solution".

### Final Answer:
The amount of an ion liberated on an electrode during electrolysis does not depend upon:
- **Conductance of the solution**.