Chapter 14, Problem 36QP

In the following oxidation-reduction reactions, identify the oxidizing agent, the reducing agent, and the number of electrons transferred.

$\begin{array}{l}\left(\text{a}\right){\text{ 61}}^{-}\left(aq\right)+{\text{BrO}}_3^{-}\left(aq\right)+6{\text{H}}^{+}\left(aq\right)\to 3{\text{I}}_2\left(aq\right)+{\text{Br}}^{-}\left(aq\right)+3{\text{H}}_{\text{2}}\text{O}\left(l\right)\hfill \\ \left(\text{b}\right){\text{ 5Br}}^{-}\left(aq\right)+{\text{BrO}}_3^{-}\left(aq\right)+6{\text{H}}^{+}\left(aq\right)\to 3{\text{Br}}_2\left(aq\right)+3{\text{H}}_{\text{2}}\text{O}\left(l\right)\hfill \\ \left(\text{c}\right){\text{ XeF}}_4\left(s\right)+2{\text{H}}_{\text{2}}\text{O}\left(l\right)\to \text{Xe}\left(g\right)+4\text{HF}\left(aq\right)+{\text{O}}_{\text{2}}\left(g\right)\hfill \\ \left(\text{d}\right)\text{ Pb}\left(s\right)+2{\text{H}}^{+}\left(aq\right)\to {\text{Pb}}^{2+}\left(aq\right)+{\text{H}}_2\left(g\right)\hfill \end{array}$