[clintmyster]

Originally Posted by brenton1987

Youve drawn a substitution reaction. Your product is still an alkene.

Bromine + alkene is an addition reaction to form an alkane.

C₆H₁₂ + Br₂ --> C₆H₁₂Br₂

Yeah brenton is right. Btw this whole UV stuff tbh is EXTRA knowledge. You actually don't want to talk about UV at all because then your not controlling your variables. The only thing you want to change is the functional group so alkanes/alkenes. The other thing is the aim of the experiment is to distinguish between the reactivities of the two so by exposing to UV light, you won't be able to do this.