Final answer:
Hydrofluorocarbon (HFC) refrigerants contain Hydrogen, Fluorine, and Carbon. They are environmentally friendlier replacements for ozone-depleting substances like CFCs and HCFCs, as HFCs do not contain chlorine.
Step-by-step explanation:
The correct answer to the question “Hydrofluorocarbon (HFC) refrigerants contain?” is D) Hydrogen, Fluorine, and Carbon.
Hydrofluorocarbons (HFCs) are compounds composed of hydrogen, fluorine, and carbon atoms. They are used as replacements for chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs), which are known to deplete the ozone layer.
Unlike CFCs and HCFCs, HFCs do not contain chlorine. The absence of chlorine means HFCs do not contribute to ozone depletion, making them a more environmentally friendly option for applications such as refrigerants, aerosol propellants, and foam blowing agents. Examples of HFCs include HFC-134a (CF3-CH₂F) and others such as CH₂FCF₃.