Which of the following are examples of CFC refrigerants?

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Multiple Choice

Which of the following are examples of CFC refrigerants?

Explanation:
CFC refrigerants are chlorine-containing chlorofluorocarbons that were once common in cooling systems, but their chlorine is what harms the ozone layer. R11 and R12 are classic examples of CFCs (they’re CFC-11 and CFC-12). They include chlorine in their molecular structure, which is why they are associated with ozone depletion. R22 is an HCFC, which also has chlorine but to a lesser extent and is being phased down. R134a and R410A are HFCs; they do not contain chlorine, so they do not deplete the ozone, though they have other environmental considerations. Therefore, the refrigerants that are CFCs are R11 and R12.

CFC refrigerants are chlorine-containing chlorofluorocarbons that were once common in cooling systems, but their chlorine is what harms the ozone layer. R11 and R12 are classic examples of CFCs (they’re CFC-11 and CFC-12). They include chlorine in their molecular structure, which is why they are associated with ozone depletion.

R22 is an HCFC, which also has chlorine but to a lesser extent and is being phased down. R134a and R410A are HFCs; they do not contain chlorine, so they do not deplete the ozone, though they have other environmental considerations. Therefore, the refrigerants that are CFCs are R11 and R12.

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