Which chemical class is used for antiseptic and disinfectant purposes, such as in Betadine?

The correct answer is the halogens. Halogens, which include elements like iodine and chlorine, are commonly used in antiseptics and disinfectants due to their effective antimicrobial properties. Betadine, specifically, contains povidone-iodine, a complex of iodine, which is a halogen known for its ability to kill bacteria, viruses, and fungi. This makes halogens particularly valuable in clinical settings for preparing the skin before surgical procedures or treating wounds to prevent infections.

Understanding the role of halogens in antiseptics can help in selecting appropriate sanitizing agents in various healthcare and athletic training scenarios, ensuring effective infection control during treatment and procedures.