Which is not a refrigerant ?
Correct answer: D. C2H4Cl2
- A. SO2
- B. NH3
- C. CCl2F2
- D. C2H4Cl2
Explanation
Sulfur dioxide, ammonia, and dichlorodifluoromethane are established refrigerants, whereas C2H4Cl2, commonly dichloroethane, is not normally classified as a refrigerant in this list.
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