Question

A student took a solution of copper sulphate in a beaker and put a clean iron nail into it and left it for about an hour. What changes do you expect?

Answer 1

Answer:

When an iron nail is immersed in the solution of CuSO4 then that iron nail displaces Cu from the solution of CuSO4 as iron is more reactive than Cu respectively! Therefore, CuSO4 solution colour changes from blue to pale green [or simply green].

Explanation:

please follow me on the brainly