Rusting of an article made up of iron is called
A. corrosion and it is a physical as well as chemical change
B. dissolution and it is a physical change
C. corrosion and it is a chemical change
D. dissolution and it is a chemical change
Answer:C
Rusting of an article made up of iron is called
A. corrosion and it is a physical as well as chemical change B. dissolution and it is a physical change C. corrosion and it is a chemical change D. dissolution and it is a chemical change
Explanation: Rusting of iron is corrosion and it’s a chemical change because the compound so formed Fe2O3.nH2O (hydrated iron oxide) has totally different composition and properties from the reactants (iron, moisture)