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:

the Cu is less reactive than Fe

Explanation:

the Cooper sulphate (CuSO4) is less reactive than Iron(Fe) in the reactivity series so when A iron is Kept in solution of CuSO4, reaction take place in which FESO4 and Cu is Formed .the color of FeSO4 and CuSO4 is not same

Answer 2

Answer:

When the iron nail is dipped:-

Then , the blue colour of copper sulphate changes to green colour.

This is because iron is more reactive than copper.

So the iron displaces out copper.

Also we can see that earlier Iron nail was silver in color.

The following shows the reaction taken as:-

CuSO4 +Fe ==> FeSO4 + Cu

CuSO4 is copper Sulphate

Fe is Iron commonly called Ferrous

FeSO4 is Iron sulphate

And also , Cu is copper.

The change in colour takes place from blue to green.

The Iron nail colour changes from silver to red.