Justify why iodine is belived to be better disinfectant than chlorine?

Iodine is believed to be a better disinfectant than chlorine for several reasons:

1. Broad-spectrum effectiveness: Iodine has been shown to be effective against a wide range of bacteria, viruses, fungi, and protozoa, making it a more versatile disinfectant compared to chlorine.

2. Residual effect: Iodine has a longer-lasting residual effect compared to chlorine, meaning it continues to kill pathogens even after the initial application.

3. Lower concentration required: Iodine is effective at lower concentrations compared to chlorine, reducing the risk of irritation or damage to surfaces and materials.

4. Less affected by pH: Iodine remains effective over a wider range of pH levels compared to chlorine, making it more reliable in various environmental conditions.

5. Less affected by organic matter: Iodine is less affected by organic matter such as dirt, blood, or feces compared to chlorine, making it more effective in real-world disinfection scenarios.

Overall, these factors contribute to the belief that iodine is a better disinfectant than chlorine in many applications.