Question

A clean iron nail was placed in a test tube containing copper sulphate solution. After some time, the colour of the solution changed from blue to green.

Write the chemical equation involved in it.

Answer 1

The reaction between a clean iron nail and copper sulfate solution can be represented by the chemical equation: Fe + CuSO4 → FeSO4 + Cu. The color of the solution changes from blue to green due to the formation of copper ions.

Step-by-step explanation:

The chemical equation for the reaction between a clean iron nail and copper sulfate solution can be written as:

Fe + CuSO4 → FeSO4 + Cu

In this reaction, the iron nail (Fe) reacts with the copper sulfate (CuSO4) to form iron(II) sulfate (FeSO4) and copper (Cu).

The change in color from blue to green is due to the formation of copper ions in the solution.