Which refrigerant is a CFC?

Which refrigerant is a CFC?

• A. R-600A
• B. R-12
• C. R-134a
• D. R-22

Answer: (B)

CFCs are chlorine-containing refrigerants that were once common but deplete the ozone layer. Among the listed options, the one that fits the CFC category is the refrigerant known as R-12. The others belong to different families: R-22 is an HCFC (also chlorine-containing but classified separately with lower ozone depletion potential), R-134a is an HFC (no chlorine), and R-600A is a hydrocarbon (no halogens). So R-12 is the CFC here.

CFCs are chlorine-containing refrigerants that were once common but deplete the ozone layer. Among the listed options, the one that fits the CFC category is the refrigerant known as R-12. The others belong to different families: R-22 is an HCFC (also chlorine-containing but classified separately with lower ozone depletion potential), R-134a is an HFC (no chlorine), and R-600A is a hydrocarbon (no halogens). So R-12 is the CFC here.