EPA 609 Technician Certification Practice Exam

Chlorofluorocarbons, commonly known as CFCs, are classified as chlorinated hydrocarbons. This classification arises from their chemical composition, which includes chlorine, fluorine, carbon, and hydrogen elements. CFCs were widely used in refrigerants, air conditioning systems, and foam-blowing agents before the understanding of their environmental impact, particularly their role in ozone layer depletion.

Chlorinated hydrocarbons are specifically characterized by the presence of chlorine atoms within their hydrocarbon structure. This distinguishes them from other types of compounds such as hydrocarbons, which only consist of hydrogen and carbon, halons, which contain bromine and are used in fire extinguishing systems, and aldehydes, which contain a carbonyl group (C=O) and have different chemical properties and uses. Thus, the identification of CFCs as chlorinated hydrocarbons is crucial for understanding their chemical behavior and their environmental implications.