Give the preparation of haloarenes from amine compounds.

(N/A) $(i)$ Diazotization: When a primary aromatic amine,dissolved or suspended in cold aqueous mineral acid,is treated with sodium nitrite,a diazonium salt is formed. The reaction is known as diazotization.
$(ii)$ Sandmeyer's reaction: Mixing the solution of freshly prepared diazonium salt with cuprous chloride or cuprous bromide results in the replacement of the diazonium group by $-Cl$ or $-Br$.
$(iii)$ Iodide product: Replacement of the diazonium group by iodine does not require the presence of cuprous halide and is done simply by shaking the diazonium salt with potassium iodide.