Question

Why do the colour & solution of copper sulphate change when we take a solution of

copper sulphate in a beaker and put an iron nail in it?​

Answer 1

Answer:

here is your answer

Explanation:

When an iron nail immersed in the solution of copper sulphate than iron displaces copper from the solution of copper sulphate because iron is more reactive than copper. Therefore copper sulphate solution colour changes from blue to pale green.

I HOPE IT HELPS YOU ✌️

PLEASE MARK MY ANSWER BRAINLIST

Answer 2

Answer:

DISPLACEMENT REACTION

Explanation:

Displacement reaction takes place when a more reactive metal displaces a less reactive metal in its solution form. Here, copper which is a less reactive metal gets displaced from its solution by iron which is a more reactive metal. This causes the formation of iron sulphate which is a green coloured solution and copper deposition on the nail.

Chemical names

Iron - Fe

Copper sulphate solution - CuSO4

Copper - Cu

Iron Sulphate solution - FeSO4

Formula

CuSO4 +Fe = FeSO4 +Cu

Copper sulphate solution (blue in colour) + Iron nail = Iron sulphate solution (green in colour) + Copper (brown)