Chapter 17, Problem 23AE

Interpretation Introduction

Interpretation:

Elements that reduce ${\text{Cu}}^{+2}$ to $\text{Cu}$ but not ${\text{Zn}}^{+2}$ to $\text{Zn}$ has to be determined.

Concept Introduction:

The series in that metals are arranged in order of increase in electrode potential is termed as electrochemical series. Among the metals in electrochemical series that are $\text{K}$, $\text{Ca}$, $\text{Mg}$, $\text{Al}$, $\text{Zn}$, $\text{Fe}$, $\text{H}$, $\text{Cu}$ and $\text{Ag}$. The ones above hydrogen are less reactive than hydrogen. The ones that are below hydrogen are more reactive than hydrogen. The arrangement is done in reactivity order that is $\text{K}$ is most reactive and $\text{Ag}$ is least reactive. Least reactive metal cannot displace more reactive metal due to this reaction does not occur.