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Before the invention of CFCs, which of the compounds was used extensively as a refrigerant?(a) Ammonia(b) Diethyl ether(c) Sulfur dioxide(d) IceThe question was asked in an online quiz.This key question is from P-Block Elements topic in section P-Block Elements of Chemistry – Class 12

Answer»

The correct choice is (C) Sulfur dioxide

To elaborate: Sulfur dioxide was USED as a refrigerant before CFCs. This is due to its CHARACTERISTIC features bearing high HEAT of evaporation and ability to be easily condensed.



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