Chapter 19.1, Problem 1CP

Which of the following equations does not represent a redox reaction? (Select all that apply.)

$\begin{array}{l}\text{a)}\hfill \\ {\text{NH}}_{\text{3}}\text{+ HCl}\underset{}{\to }{\text{ NH}}_{\text{4}}\text{Cl}\hfill \\ \text{b)}\hfill \\ {\text{2H}}_{\text{2}}{\text{O}}_{\text{2}}\underset{}{\to }{\text{2H}}_{\text{2}}{\text{O + O}}_{\text{2}}\hfill \\ \text{c)}\hfill \\ {\text{2O}}_{\text{3}}\underset{}{\to }{\text{3O}}_{\text{2}}\hfill \\ \text{d)}\hfill \\ {\text{3NO}}_{\text{2}}{\text{+ H}}_{\text{2}}\text{O}\underset{}{\to }{\text{ NO + 2HNO}}_{\text{3}}\hfill \\ \text{e)}\hfill \\ \text{LiCl}\underset{}{\to }{\text{ Li}}^{\text{+}}{\text{+ Cl}}^{\text{-}}\hfill \end{array}$