Which one of the following is NOT a haloalkane?

A) Freon
B) Teflon
C) Iodoform
D) Vinyl chloride

Every compound here seems to me as a haloalkane: Freon, Teflon, iodoform, and vinyl chloride.

My text says the answer is vinyl chloride, but how?

  • 6
    $\begingroup$ Hint: they certainly all contain halogens, but what is an alkane? $\endgroup$ – Tyberius Dec 28 '20 at 1:13
  • 4
    $\begingroup$ What is the structure of vinyl group? $\endgroup$ – M. Farooq Dec 28 '20 at 1:46
  • 1
    $\begingroup$ One of these things is not like the others One of these things just doesn't belong Can you tell which thing is not like the others By the time I finish my song? Sesame Street $\endgroup$ – user55119 Dec 28 '20 at 20:07

I have went through each option:

A) Freon is $\ce{CCl2F2},$ which is derived from methane

B) Teflon is a polymer of $\ce{-F2C-CF2 -}$ (or) $\ce{(C2F4)_n},$ derivative of 1,2-difloroethene. Here, carbon is saturated, which means no double or triple bond is present.

C) Iodoform is $\ce{CHI3},$ which again is a derivative of methane.

D) Vinyl chloride is unsaturated thus it does not classify as an haloalkane.


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