# Which one of the following is NOT a haloalkane? [closed]

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?

• Hint: they certainly all contain halogens, but what is an alkane? – Tyberius Dec 28 '20 at 1:13
• What is the structure of vinyl group? – M. Farooq Dec 28 '20 at 1:46
• 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 – user55119 Dec 28 '20 at 20:07

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.