IGCSE Chemistry 0620/21/O/N/21 Q27
27 Aluminium objects do not need protection from corrosion. Iron objects must be protected from corrosion.
Which statement explains why aluminium resists corrosion?
A Aluminium does not form ions easily.
B Aluminium does not react with water or air.
C Aluminium has a protective oxide layer.
D Aluminium is below iron in the reactivity series.