Answer part (a) and EITHER part (b) OR part (c). (i) Identify the most acidic proton(s) in the Brnsted acids shown below and provide structures for the key species involved in their acid/base equilibria. Use resonance structures of these species and inductive and resonance electronic effects to explain the order of acidity observed. [10] pa4.8 (ii) Suggest reagents and conditions suitable for carrying out transformations i and ii shown below, explaining your choices. (Note: More than one step may be required in either of these transformations.) [7] (i) Draw the structure of the product A that you would expect to obtain from the reaction shown below and provide a mechanism for its formation. [8] (ii) Suggest reagents and conditions suitable for carrying out the transformation shown below and provide a mechanism for the reaction you have chosen. [8]