why does colour of copper sulphate solution change when iron nail is dipped in it

Asked by obaleshamp | 22nd Dec, 2019, 01:02: PM

Expert Answer:

If an iron nail is dipped in the copper sulphate solution then iron displaces copper from the copper sulphate because iron is more reactive than copper. Therefore the colour of the copper sulphate solution changes.
The reaction involved is as follows

Fe(s) + CuSO4 (aq) → FeSO4(aq) + Cu(s)

Answered by Ramandeep | 23rd Dec, 2019, 02:50: PM