Question

why does the colour of copper sulphate solution change an iron nail is dipped in it ​

Answer 1

Answer:

Blue colour of the copper sulphate solution changes into green colour & then iron nail acquires a brownish look. This is because that iron is more reactive than copper.

The following chemical reaction takes place in this activity.

Fe+CuSO

4

→FeSO

4

+Cu

In this reaction, iron displaces copper from CuSO

4

solution.

Answer 2

Blue colour of the copper sulphate solution changes into green colour & then iron nail acquires a brownish look. This is because that iron is more reactive than copper. ... In this reaction, iron displaces copper from CuSO4 solution.