What is the advantage of preparation of `O_(2)` by `H_(2)O_(2)` over its preparation by `KCIO_(3)` and `KMnO_(4)`?

Explanation

To answer the question regarding the advantages of preparing oxygen (O₂) using hydrogen peroxide (H₂O₂) compared to potassium chlorate (KClO₃) and potassium permanganate (KMnO₄), we can analyze the differences in the methods of preparation.

### Step-by-Step Solution:

1. **Understanding the Reaction with H₂O₂**:
- Hydrogen peroxide decomposes to produce oxygen gas. The reaction can be represented as:
\[
2 H_2O_2 \rightarrow 2 H_2O + O_2
...