Question

Observe the diagram given alongside carefully and answer the question below.
A. After 10 minutes of keeping the set up as shown in the figure , the colour of the iron nail changes , What does this indicate?

Answer 1

Answer:

When there is colour change it indicates that a chemical reaction has taken place.

2.Displacement reaction

3.Fe is more reactive as it is displacing Cu from CuSO4.

4. No reaction will take place.As Cu + FeSO4----) No reaction. Cu is less reactive than Fe so Fe can't be displaced by Cu.

5.Fe+CuSO4----)FeSO4+Cu