Br2 is much more soluble in tetrachloromethane, CCl4 [aka “carbon tetrachloride”], than in water. Explain. Both bromine and CCl4 are nonpolar with dispersion forces being the only forces present. Thus, they are quite similar and “like dissolves like” prevails.
What will Br2 dissolve in?
Bromine is readily soluble in water (0.33 mg / ml), but is very soluble in organic solvents such as CCl4. As Ram Kowshik mentioned, due to the relatively larger size of the molecule, water can induce a dipole on Br2. So bromine can be dissolved in water, but not as much as a normal polar molecule.
What is the use of Br2 in CCl4 reagent?
Water contributes to bromohydrin formation, which further helps to add Br and OH to the double bond. As a result, the double bond breaks and the bromine atom binds to each carbon atom. The dark brown colour of bromine becomes colourless during this reaction.