Question

what will be the colour of iron fillings and copper sulhate solution when they reacf witb each other (i) before experioment (ii) after axperiment . give reason for the change in colour​

Answer 1

Explanation:

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