3. a. The reaction sequence shown in Scheme 5 demonstrates the synthesis of a substituted benzene derivative Q. NH2 X HNO3, H2SO4 NaNO2, HCI CHCIN2 0C CGHINO2 N O Scheme 5 Draw the structure of intermediate 0. [2 marks] e 6 (ii) Draw the mechanism for the transformation of aniline N to intermediate 0. [6 marks] (iii) Identify the reagent X used to convert compound 0 to the iodinated compound P. [2 marks] (iv) Identify the possible structures of compound Q. [2 marks] (v) Draw the mechanism for the transformation of intermediate P to compound Q. (5 marks] (vi) Account for the regiochemical outcome observed in the reaction forming compound Q. [3 marks/