The reaction involves a chlorination of the given compound in the presence of \( \text{FeCl}_3 \), which is a Lewis acid. In this reaction, the \( \text{Cl}_2 \) generated from the reagent will attack the aromatic ring. The chlorine atom will substitute the position of the hydrogen atom in a regioselective manner. The position where chlorine attaches is primarily influenced by the electron-withdrawing effect of the \( \text{CCl}_3 \) group, making the ortho and para positions more reactive.