Para dichlorobenzene is a hydrocarbon that aromatic and chlorinated. It acts as an insecticide and exhibits repellent characteristic. It is basically solid in form and gets converted into gas through the process of sublimation.  Organisms like insects and fungi can be killed by using para dichlorobenzene and may be toxic to humans. Almost all pesticide chemical contains para dichlorobenzene as a content and is filled in airtight containers to get rid of insects and moths that survive in wardrobes and fibrous materials.