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Q. |
The commonly used coolant in refrigerators is – |
A. | Ammonia |
B. | Nitrogen |
C. | Freon |
D. | Oxygen |
Answer» C. Freon | |
Explanation: Modem refrigerators usually use a refrigerant called FIFC-134a (1,1,1,2- Tetrafluoroethane), which does not deplete the ozone layer, instead of Freon. Freon used to be the most common refrigerant till the 1980s; however, its use has declined since |
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