3. a. Show the step by step mechanism for the formation of the para product from the following reaction by electrophilic aromatic substitution. Use arrows to represeat electron flow, and show the intermediates and key resonance structures. b. Explain why the para product is favored over the ortho and the meta possibititios. c. Draw an energy diagram of the reaction and label reactants, transition states, intermediates, products, activation energy, and G. AlCl3