Environmental Protection Agency (EPA) MVAC Certification 2025 – The All-in-One Guide to Exam Success!

R-152A, also known as 1,1-difluoroethane, is a hydrofluorocarbon (HFC) that primarily consists of hydrogen and fluorine. This compound has the chemical formula C2H4F2, which indicates that it contains both carbon and hydrogen atoms, as well as fluorine atoms. The presence of hydrogen and fluorine is key to its classification as an HFC, distinguishing it from other refrigerants that may contain different elemental compositions.

The other options do not accurately reflect the elements that make up R-152A. The absence of oxygen, nitrogen, or chlorine in its molecular structure further confirms that the primary elements are indeed hydrogen and fluorine. Understanding the composition of refrigerants like R-152A is crucial in contexts such as environmental impact, regulation, and safe handling practices in HVAC applications.