A) \[C{{F}_{2}}=C{{F}_{2}}\]
B) \[C{{H}_{2}}{{F}_{2}}\]
C) \[CC{{l}_{2}}{{F}_{2}}\]
D) \[C{{F}_{4}}\]
Correct Answer: C
Solution :
Freon used as refrigerant is \[CC{{l}_{2}}{{F}_{2}}.\] \[CC{{l}_{4}}+2HF\xrightarrow{S{{b}_{2}}{{F}_{5}}}\underset{\text{freon}}{\mathop{C{{F}_{2}}C{{l}_{2}}}}\,+2HCl\]
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