Write short note on
Hunsdicker reaction.

Explanation

Hunsdicker reaction. It involves decomposition of silver salt of carboxylic acid with `Br_(2)` in `C Cl_(4)` by refluxing when corresponding alkyl or aryl bromide is obtained.
`RCOOAg + Br_(2) underset("Reflux")overset(C Cl_(4)//350 k)rarr R - Br + CO_(2) + AgBr`
For example,
`underset("Silver acetals")(CH_(3)COOAg) + Br_(2) underset("Reflux")overset(C Cl_(4)//350K)rarr underset("Bromomethane")(CH_(3)-Br) + CO_(2) + AgBr`