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\[CC{{l}_{2}}{{F}_{2}}\]. \[CC{{l}_{4}}+2HF\xrightarrow{s{{b}_{2}}{{F}_{5}}}\underset{\begin{smallmatrix} \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,freon \\ (dochlorodifluoro\text{ }methane) \end{smallmatrix}}{\mathop{C{{F}_{2}}C{{l}_{2}}+2HCl}}\,\]
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