Colour of Copper Sulphate Solution Obtained When Iron Nails are Dipped in it

When iron nails are dipped in copper sulphate solution, a reaction takes place between the iron and copper sulphate solution. This results in a change in the colour of the solution.

Colour of Copper Sulphate Solution Before Dipping the Iron Nails

Before dipping the iron nails in the copper sulphate solution, the colour of the solution is blue.

Colour of Copper Sulphate Solution After Dipping the Iron Nails

After dipping the iron nails in the copper sulphate solution, the colour of the solution changes from blue to green. The green colour of the solution indicates that some of the copper from the copper sulphate solution has been displaced by the iron nails. This reaction is an example of a displacement reaction.

Explanation of the Reaction Between Iron and Copper Sulphate Solution

The reaction between iron and copper sulphate solution can be represented by the following equation:

Fe(s) + CuSO4(aq) → FeSO4(aq) + Cu(s)

In this reaction, the iron in the iron nails displaces the copper in the copper sulphate solution. This results in the formation of iron sulphate and copper metal. The iron nails become coated with copper metal, which gives them a reddish-brown appearance.

Conclusion

In conclusion, the colour of copper sulphate solution changes from blue to green when iron nails are dipped in it. This is due to the displacement of copper by iron in a chemical reaction. This reaction is an example of a displacement reaction.

The colour obtained by dipping iron nail in copper sulphate solution is green...