Question

a student was assigned the experiment of interaction of iron nail with with a solution of copper sulphate salt what observation he or she should have recorded as per given below ?initial colour of the solution ,final colour of the solution ,change in the colour of iron nail. Mention the type of reaction

Answer 1

iron replaces copper and forms iron sulphate. substitution reaction

Answer 2

Explanation:

When iron nail is dipped in copper sulphate solution then iron being more reactive will replace copper from copper sulphate solution.

The chemical reaction equation will be as follows.

      $CuSO_{4}(aq) + Fe(s) \rightarrow FeSO_{4}(aq) + Cu(s)$

Thus, there will be formation of iron sulphate solution and copper.

This reaction is known as displacement reaction. Initial color of the solution was blue and when iron displaces copper then final color of solution is light green.