Chapter 11, Problem 30E

Use the table of standard reduction potentials (Table11.1) to pick a reagent that is capable of each of the followingreductions (under standard conditions in acidicsolution).
a. reduces ${\text{Cu}}^{\text{2+}}$ to Cu but does not reduce ${\text{Cu}}^{\text{2+}}$ to ${\text{Cu}}^{\text{+}}$
b. reduces ${\text{Br}}_{\text{2}}{\text{to Br}}^{\text{–}}$ but does not reduce ${\text{I}}_{\text{2}}{\text{to I}}^{\text{–}}$