Why iodoform show antiseptic properties ?

Answer

### Step-by-Step Solution:

1. **Understanding Iodoform**:
- Iodoform is a chemical compound with the formula CHI₃. It consists of one carbon atom, one hydrogen atom, and three iodine atoms.

2. **Antiseptic Properties**:
- Antiseptic properties refer to the ability of a substance to kill or inhibit the growth of microorganisms, such as bacteria and fungi.

3. **Interaction with Organic Matter**:
- When iodoform comes into contact with organic matter (like skin or other tissues), it undergoes a decomposition reaction.

4. **Decomposition Reaction**:
- The decomposition of iodoform leads to the release of iodine gas (I₂). This reaction occurs because iodoform is sensitive to organic materials.

5. **Role of Iodine Gas**:
- The iodine gas that is liberated during the decomposition is responsible for the antiseptic properties. Iodine is known for its ability to kill bacteria and fungi effectively.

6. **Conclusion**:
- Therefore, the antiseptic properties of iodoform are due to the release of iodine gas when it decomposes upon contact with organic matter, which then acts to kill harmful microorganisms.