Which of the following is NOT a natural refrigerant?

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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

Which of the following is NOT a natural refrigerant?

Explanation:
Natural refrigerants are substances that occur in nature and have very low environmental impact, especially in terms of ozone depletion and global warming potential. Among the options, the one that is not a natural refrigerant is R-134a, a synthetic hydrofluorocarbon with a relatively high global warming potential. The other three—R-744 (carbon dioxide), R-290 (propane), and R-600a (isobutane)—are considered natural refrigerants because they occur in nature and typically have very low GWP and zero ODP.

Natural refrigerants are substances that occur in nature and have very low environmental impact, especially in terms of ozone depletion and global warming potential. Among the options, the one that is not a natural refrigerant is R-134a, a synthetic hydrofluorocarbon with a relatively high global warming potential. The other three—R-744 (carbon dioxide), R-290 (propane), and R-600a (isobutane)—are considered natural refrigerants because they occur in nature and typically have very low GWP and zero ODP.

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