Question

Why does the color of the copper sulphate solution change if an iron nail is dipped in it?​

Answer 1

Answer:

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 is

Explanation:

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 is

Answer 2

Answer:

it changes to green

Explanation:

There is no reason behind it. It is because copper molecules get displaced by iron molecules from the iron nail and forms a new solution which is green in colour.