Question

Name one metal when placed in ferrous sulphate solution will discharge its green colour. Write a chemical equation and state the reasons also. [3 MARKS]

Answer 1

Each point: 1 Mark

1. Potassium (K) is one example.
2. $2\text{K}$ + $\text{Fe}{\text{SO}}_4$ $\to$ ${\text{K}}_2{\text{SO}}_4$ + $\text{Fe}$
3. Potassium is more reactive than iron and will displace it.