What Are Three Useful Applications Of Halogens?

What Are Three Useful Applications Of Halogens? Halogens are used in the chemical, water and sanitation, plastics, pharmaceutical, pulp and paper, textile, military and oil industries. Bromine, chlorine, fluorine and iodine are chemical intermediates, bleaching agents and disinfectants. Are halogens helpful to humans? Modern utilization of halogens is extensive. They are used in swimming pools