Which gas is used in refrigerators for cooling...? Mcqs

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Which gas is used in refrigerators for cooling...?

(A) Chlorofluorocarbon

(B) Nitrogen

(C) Helium

(D) Tetrafluoroethene

✅ Correct Answer: Tetrafluoroethene

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Source: This question is taken from the Naib Tehsildar General Knowledge PPSC Past Paper

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