The process in which chemical change occurs on passing electricity is termed:

Options

A. Ionisation
B. neutralisation
C. electrolysis
D. hydrolysis

Answer

To solve the question, "The process in which chemical change occurs on passing electricity is termed:", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question is asking for a specific term that describes a process where a chemical change occurs due to the passage of electricity.

2. **Identifying Relevant Processes**: There are several processes in chemistry that involve electrical energy, including ionization, neutralization, electrolysis, and hydrolysis.

3. **Defining Each Process**:
- **Ionization**: This is the process of gaining or losing electrons, resulting in the formation of ions. However, it does not specifically involve a chemical change due to electricity.
- **Neutralization**: This is a reaction between an acid and a base to form water and salt. It does not involve the direct passage of electricity.
- **Electrolysis**: This is the process where electrical energy is used to drive a non-spontaneous chemical reaction. It involves the breakdown of compounds into their constituent elements or ions in an electrolytic solution.
- **Hydrolysis**: This is a reaction involving water, but it is not specifically about the passage of electricity.

4. **Selecting the Correct Process**: Among the processes discussed, electrolysis is the only one where a chemical change occurs specifically due to the passage of electricity.

5. **Conclusion**: Therefore, the correct answer to the question is "Electrolysis".

### Final Answer:
The process in which chemical change occurs on passing electricity is termed **Electrolysis**.

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