Bleaching action of hydrogen peroxide is due to____.

Explanation

**Step-by-Step Solution:**

1. **Understanding Hydrogen Peroxide**: Hydrogen peroxide (H₂O₂) is a chemical compound known for its bleaching properties and its ability to act as an oxidizing agent.

2. **Bleaching Action Mechanism**: The bleaching action of hydrogen peroxide occurs when it decomposes into water (H₂O) and nascent oxygen (O). The reaction can be represented as:
\[ 2 H_2O_2 \rightarrow 2 H_2O + O \]
Here, nascent oxygen refers to oxygen that is in a highly reactive state.

3. **Role of Nascent Oxygen**: The nascent oxygen produced is highly reactive and can oxidize colored substances. This oxidation process breaks the chemical bonds in the colored organic compounds, leading to the formation of colorless products.

4. **Permanent Bleaching**: The bleaching action of hydrogen peroxide is considered permanent because it alters the structure of the colored compounds, making them colorless and unable to revert to their original state.

5. **Conclusion**: Therefore, the bleaching action of hydrogen peroxide is primarily due to its oxidizing property, which allows it to oxidize colored substances into colorless forms.

**Final Answer**: The bleaching action of hydrogen peroxide is due to its oxidizing property.

---