A) As local anaesthetic
B) For dissolving impurities in metallurgical process
C) In refrigerator
D) In printing industry
Correct Answer: C
Solution :
Freon \[(CC{{l}_{2}}{{F}_{2}})\] is an odourless, non-corrosive, non toxic gas which is stable even at high temperatures and pressures. It has low b.Pt, low specific heat and can be easily liquified by applying pressure at room temperature. It is therefore, widely used in refrigerant (cooling agent) in refrigerators and air conditioners.
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