Question

rahul dissolved some copper sulphate crystals in 60ml of water a blue colour water is obtained he put an iron nail in the solution and kept it for 10minutes the blue colour of the solution changes to green colour because of A neutralization reaction B displacement reaction C combination reaction D decomposition reaction​

Answer 1

Answer:

rahul dissolved some copper sulphate crystals in 60ml of water a blue colour water is obtained he put an iron nail in the solution and kept it for 10minutes the blue colour of the solution changes to green colour because of A neutralization reaction B displacement reaction C combination reaction D decomposition reaction

Answer 2

Explanation:

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.