Iron is a widely used transition metal, but one major drawback is that it undergoes rusting under certain conditions.
(i) State the chemical name for rust.
(ii) Write the chemical formula for the main anhydrous iron oxide component of rust.
The reaction of iron with oxygen to form rust is an example of which type of reaction? Select the correct option from the following list:
Sacrificial protection is a method used to prevent iron structures, such as ship hulls, from rusting. (i) Name one metal that is suitable to be used for the sacrificial protection of iron.
(ii) Explain, in terms of reactivity, how this sacrificial metal protects the iron from rusting.
State two barrier methods (other than sacrificial protection) used to prevent iron from rusting.
