Which of the following polyhalogen compounds is used in the production of the freon refrigerant R-22?
Correct Answer :
Chloroform
Solution :
The correct option is Chloroform.
Explanation:
Freon-22 (hydrochlorofluorocarbon-22 or HCFC-22) has the chemical formula (chlorodifluoromethane).
It is industrially produced through the fluorination of chloroform () using hydrogen fluoride () in the presence of a catalyst such as antimony pentachloride ():
Therefore, chloroform is the polyhalogen compound used in the production of freon refrigerant R-22.
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