Rusting of iron involves a chemical reaction which is a combination of:
?a. Reduction as well as combination reactions
?b. Oxidation as well as combination reactions
?c. Reduction as well as displacement reactions
?d. Oxidation as well as displacement reactions

Dear student,

Corrosion of Iron in the presence of oxygen and air leads to formation of brown solid known as rust. This process is called rusting due to formation of rust.

4 Fe + 3 O₂ + 2x H₂O → 2 Fe₂O₃.xH₂O
​​​​​Rusting is the corrosion of Iron.
The oxidation of Fe increases from 0 to +3, thus, it is an oxidation reaction. Also, iron combines with oxygen iron oxide is formed. It is both combination and oxidation reaction.
Thus, the correct option is b)

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