Observe the diagram given alongside carefully and answer the questions below. Which of the two metals involved in the given process is more reactive.

Iron and copper are the two metals involved in the given process. This reaction has occurred because iron is more reactive than copper. When iron is added to a copper sulphate solution, it displaces the copper metal from the copper sulphate solution to form iron sulphate. It is a type of displacement reaction. CuSO 4 ( aq ) + Fe ( s ) → FeSO 4 ( aq ) + Cu ( s ) . The copper sulphate solution colour changes from blue to pale green.

Observe the diagram given alongside carefully and answer the questions below. What changes do you expect in the reaction mixture, if a copper wire is kept immersed in an iron sulphate solution?

When the copper wire is immersed in an iron sulphate solution then there is no reaction take place between the metals because copper is less reactive than iron, so it can't displace iron from iron sulphate solution. Cu s + FeSO 4 aq → X ( no reaction ) .

Corrosion is a natural process, which converts a refined metal to a more chemically stable form, such as its oxide, hydroxide, or sulphide. It is the gradual destruction of materials (usually metals) by chemical or electrochemical reaction with their environment.Example rusting of iron is type of corrosion.