Chapter U5.17, Problem 3E

Interpretation Introduction

Interpretation:The extraction of metal from metal salt solution is to be described.

Concept introduction:The naturally occurring form of metal inside earth is known as ore. The extraction of metal takes place from ore.

Answer to Problem 3E

The extraction of metal from metal salt solution can be done by reacting it with more electropositive metal atom. The chemical reaction that takes place is displacement reaction.

Explanation of Solution

The metal salt solution is formed when metal reacts with acid like sulfuric acid $\left({\text{H}}_{\text{2}}{\text{SO}}_{\text{4}}\right)$ . The chemical reaction is shown below:

  $\text{Cu}+{\text{H}}_{\text{2}}{\text{SO}}_4\to {\text{CuSO}}_4+{\text{H}}_2$

Here, ${\text{CuSO}}_{\text{4}}$ is the metal salt. The copper atom from metal salt can be extracted by treating it with more electropositive atom like Zinc.The reaction is known as displacement reaction. The extraction with copper from ${\text{CuSO}}_{\text{4}}$ with Zn

  ${\text{CuSO}}_4\left(aq\right)+\text{Zn}\left(s\right)\to {\text{ZnSO}}_4\left(aq\right)+\text{Cu}\left(s\right)$

Conclusion

The extraction of metal from metal salt solution can be done by reacting it with more electropositive metal atom. The chemical reaction that takes place is displacement reaction.