Chapter 18, Problem 3ALQ

Which of the following are oxidation-reduction reactions’? Explain.

a. ${\text{PCl}}_3+{\text{Cl}}_{\text{2}}\to {\text{PCl}}_5$   b. $\text{Cu}+{\text{2AgNO}}_3\to \text{Cu}{\left({\text{NO}}_{\text{3}}\right)}_{\text{2}}+\text{2Ag}$   c. ${\text{CO}}_{\text{2}}+\text{2LiOH}\to {\text{Li}}_{\text{2}}{\text{CO}}_3+{\text{H}}_2\text{O}$   d. ${\text{FeCl}}_{\text{2}}+\text{2NaOH}\to \text{Fe}{\left(\text{OH}\right)}_{\text{2}}+\text{2NaCI}$   e. ${\text{MnO}}_{\text{2}}+\text{4HCl}\to {\text{Cl}}_{\text{2}}+{\text{2H}}_{\text{2}}\text{O}+{\text{MnCl}}_{\text{2}}$