1.

The repeating units of PTFE are%!

A. Cl‚ÇÇCH = CH‚ÇÉ
B. F‚ÇÇ C = CF‚ÇÇ
C. F‚ÇÉ C = CF‚ÇÉ
D. FClC = CF‚ÇÇ
Answer» C. F‚Äö√á√â C = CF‚Äö√á√â


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