Question

Why does blue colour of copper sulphate solution fade when a iron rod is dipped in it

Answer 1

Due to displacement reaction

Iron displaces copper from its solution

Explanation:

Answer 2

Answer:

Blue colour of copper sulphate solution fade when a iron rod is dipped in it because copper is getting displace from its solution and the blue colour starts fading and brown colour starts depositing on iron rod .

In this the chemical reaction is

CuSO4 + Fe ==> FeSO4 + Cu (displacement reaction)