Identify the final product [Z] formed when Chlorobenzene undergoes the given series of reactions:

Step-by-step solution

The reaction sequence begins with the Friedel-Crafts alkylation of chlorobenzene with methyl chloride in the presence of anhydrous AlCl₃ . Chlorobenzene is ortho/para directing, and the para-isomer is the major product due to steric hindrance at the ortho position. Thus, [W] is 1-chloro-4-methylbenzene (p-chlorotoluene). Next, [W] reacts with Cl₂ in the presence of UV light. This is a free-radical substitution reaction that occurs at the benzylic position. Therefore, [X] is 1-chloro-4-(chloromethyl)benzene (p-chlor