Question

why do the colour and solution of copper sulphate change when we take a solution of copper sulphate in a beaker and put an iron tail in it connect process and even with cause​

Answer 1

Answer:

When an iron nail immersed in the solution of copper sulphate than iron displaces copper from the solution of copper sulphate because iron is more reactive than copper. Therefore copper sulphate solution colour changes from blue to pale green.