A) \[{{[-C{{F}_{2}}-C{{F}_{2}}-]}_{n}}\]
B) \[C{{F}_{2}}=C{{F}_{2}}\]
C) \[CF\equiv CF\]
D) none of these
Correct Answer: A
Solution :
Teflon is \[{{\left[ -C{{F}_{2}}-C{{F}_{2}}- \right]}_{n}}\]
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