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It is formed when chloroform is treated with the hydrofluoric acid and antimony trifluoride.

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SbF3 800oC

CHCl3 ---→ CHF2Cl ----→ CF2 = CF2

HF -HCl (b.pt. -76oC)

when polymerused tetrafluoroethylene forms a material which plasic like on appearance and is called Teflon.

nCF2 = CF2 ----→ (- CF2 - CF2 -) n

(Tetrafluoroethylene) (Teflon)

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11y ago

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