Give examples of Friedel-Crafts alkylation.

(N/A) Friedel-Crafts alkylation is the reaction of benzene with an alkyl halide in the presence of an anhydrous $AlCl_3$ catalyst to form alkylbenzene.
Examples:
$(i) \ C_6H_6 + CH_3Cl \xrightarrow{\text{anhydrous } AlCl_3, 373 \ K} C_6H_5CH_3 + HCl \text{ (Toluene)}$
$(ii) \ C_6H_6 + C_2H_5Cl$ $\xrightarrow{\text{anhydrous } AlCl_3, \Delta, 373 \ K} C_6H_5C_2H_5 + HCl \text{ (Ethylbenzene)}$