The radical bromine atoms can then go on to react with other species in solution (including each other) in a chain reaction. This reaction proceeds at room temperature and does not require sunlight or ...

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.

The radical bromine atoms can then go on to react with other species in solution (including each other) in a chain reaction. This reaction proceeds at room temperature and does not require sunlight or ...