2.16

[Wendy_Liu_3A]

Hello! If 2 halides occupy the same carbon, do we have to write the #s separately for each halide, or can we write the both the #s in front?
(i.e. 3,3-chlorofluoropropene or 3-chloro-3-fluoropropene)? Thank you!

[Chem_Mod]

You would write them separately, the only times you would combine the numbering is with the same type of substituent, or if the numbering is assumed to be 1 for both, like chlorofluoromethane.

So it would be 1 chloro 2 fluoroethane

[Anmol Dhaliwal 2C]

I believe the #s would be written separately because they are different halides and this way they would not be confused with each other in the naming (even if they are on the same carbon).

[Wendy_Liu_3A]

Thank you!

[Trisha Agarwal 1O]

I have a quick follow up question. For this problem the double bond gets priority over the functional group for the numbering(3-chloro-3-bromo-propene). I thought that functional groups had higher priority than double or triple bonds? Is it only for the haloalkanes that double and triple bonds get higher priority? Thanks in advance!