The bromination reactions and mechanisms are compared. UV light splits the bromine molecule into two reactive ... The rapid disappearance of the amber color of the bromine at room temperature is ...

The bromination reactions and mechanisms are compared. UV light splits the bromine molecule into two reactive ... The rapid disappearance of the amber color of the bromine at room temperature is ...

Bromine water is an orange solution of bromine. It becomes colourless when it is shaken with an alkene. Alkenes can decolourise bromine water, but alkanes cannot. The slideshow shows this process.