Chapter 5, Problem 5.85E

Identify the oxidizing agent and the reducing agent in the following reaction:

$\begin{array}{l}8{\text{H}}^{+}\left(\text{aq}\right)+6{\text{Cl}}^{-}\left(\text{aq}\right)+\text{Sn}\left(\text{s}\right)+4{\text{NO}}_{\text{3}}{}^{-}\left(\text{aq}\right)\to \\ {\text{SnCl}}_6{}^{2-}\left(\text{aq}\right)+4{\text{NO}}_{\text{2}}\left(\text{g}\right)+4{\text{H}}_{\text{2}}\text{O}\left(l\right)\end{array}$

a. oxidizing agent: $8{\text{H}}^{+}\left(\text{aq}\right)$, reducing agent: $\text{Sn}\left(\text{s}\right)$

b. oxidizing agent: $4{\text{NO}}_{\text{3}}{}^{-}\left(\text{aq}\right)$, reducing agent: $\text{Sn}\left(\text{s}\right)$

c. oxidizing agent: $4{\text{NO}}_{\text{3}}{}^{-}\left(\text{aq}\right)$, reducing agent: $4{\text{NO}}_{\text{2}}\left(\text{g}\right)$

d. oxidizing agent: $4{\text{NO}}_{\text{3}}{}^{-}\left(\text{aq}\right)$, reducing agent: $8{\text{H}}^{+}\left(\text{aq}\right)$