What are the advantages of preparation of `O_(2)` by electrolysis over fractional distillation of air?

Explanation

To answer the question about the advantages of preparing oxygen (O₂) by electrolysis over fractional distillation of air, we can break down the solution into several key points:

### Step-by-Step Solution:

1. **Definition of Processes**:
- **Electrolysis**: This is a chemical process that uses electricity to break down a compound into its components. For oxygen, water (H₂O) can be electrolyzed to produce oxygen gas (O₂) and hydrogen gas (H₂).
- **Fractional Distillation of Air**: This is a physical separation process where air is cooled and liquefied, and then the different components are separated based on their boiling points. Oxygen is separated from nitrogen and other gases.

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