R-11 and R-12 are which type of refrigerants?

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Prepare for the SkillCat EPA Type 2 Test with interactive flashcards and multiple-choice questions. Each question is accompanied by hints and explanations. Get ready to pass your exam!

Multiple Choice

R-11 and R-12 are which type of refrigerants?

Explanation:
R-11 and R-12 are chlorofluorocarbons, or CFCs. These refrigerants are fully halogenated compounds that contain chlorine and fluorine attached to carbon. The chlorine atoms in CFCs rise to the stratosphere and release radicals under sunlight, which catalytically destroy ozone molecules. Because of this ozone-depleting potential, CFCs like R-11 and R-12 were phased out worldwide under the Montreal Protocol and gradually replaced with alternatives such as HCFCs and HFCs. Historically, these were common in older refrigeration and air-conditioning systems, so recognizing the chlorine-containing, ozone-depleting nature helps identify them as CFCs.

R-11 and R-12 are chlorofluorocarbons, or CFCs. These refrigerants are fully halogenated compounds that contain chlorine and fluorine attached to carbon. The chlorine atoms in CFCs rise to the stratosphere and release radicals under sunlight, which catalytically destroy ozone molecules. Because of this ozone-depleting potential, CFCs like R-11 and R-12 were phased out worldwide under the Montreal Protocol and gradually replaced with alternatives such as HCFCs and HFCs. Historically, these were common in older refrigeration and air-conditioning systems, so recognizing the chlorine-containing, ozone-depleting nature helps identify them as CFCs.

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