Halogenation

The video tutorial explains the reaction of halogens with alkenes, focusing on the addition reaction where halogens like chlorine, bromine, and iodine react with carbon-carbon double bonds. It highlights the reactivity differences among halogens, with fluorine being highly reactive and iodine the least. The tutorial also discusses the use of bromine as a test for alkenes, as it changes from orange-brown to colorless upon reaction. By the end, viewers should understand halogenation reactions and how bromine tests for alkenes.

What happens to the reaction speed of halogens as you move down the group?

How can the presence of a carbon-carbon double bond be tested?