A piece of iron on heating gets red-hot and on rusting it changes to reddish brownpowder. What general name is given to eachof these changes?

A piece of iron on heating gets red-hot and on rusting it changes to

1.	A piece of iron on heating gets red-hot and on rusting it changes to reddish brownpowder. What general name is given to eachof these changes?
Answer» Heating and RUSTING.Explanation:Rusting of IRON is chemical change which is an irreversible change, A piece of iron becomes rust due to the presence of moist AIR. while heating of iron is a physical change as the process affects the physical PROPERTIES of iron(it is a REVERSIBLE change).