Question

Why does the colour of copper sulphate solution change when an iron nail is dipped in it reaction?

Answer 1

》》》Answer:《《《

■Explanation =》The colour of Copper sulphate solution changes when an iron nail is dipped in it because iron is more reactive than copper. It displaces copper from the copper sulphate solution and the blue colour of copper sulphate solution disappears and the iron nail becomes brownish in colour.

Answer 2

$<font color = blue><bullet>$

When an iron nail dipped in the copper sulphate solution than 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 here is:

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