The reaction: $ArN_2Cl \xrightarrow{Cu / HCl} ArCl + N_2$ is known as

Describe the methods of preparation of haloarenes.

Industrially,chlorobenzene is prepared by:

Chlorobenzene is prepared commercially by

The conversion of benzene diazonium chloride to chlorobenzene in the presence of $CuCl / HCl$ is known as:

Nitration of toluene is followed by reduction with $Sn + HCl$. The product obtained is then subjected to diazotization followed by heating with $Cu_2Br_2 + HBr$. What is the final product?