Question

Iron articles rust readily whereas steel which is also mainly made of iron will not undergo corrosion.
(a) True
(b) False

Answer 1

Hint: Iron when comes in contact with moisture and air starts to corrode easily or we can say that the rusting of iron takes place. But some of the alloys of the iron have the property to prevent corrosion.

Complete step by step answer:
Corrosion is a process in which the metal starts to degrade or worsen by time due to the action of moisture in air on the surface of the metal. The resulting compounds that formed after the corrosion are oxides, sulfides, carbonates, and sulfates.
The degradation of the iron metal is called the rusting of iron that is called rusting of iron which is one the most common examples of corrosion.
But many techniques help to prevent the corrosion or rusting of the iron, like barrier protection, sacrificial protection (galvanization), electrical protection, and using an anti-rust solution. In all of these iron, the surface is not allowed to come in contact with air and moisture.
So, steel which is an alloy of iron in which the iron is mixed with chromium, manganese, silicon, and carbon in some cases the nickel and molybdenum are mixed with iron, all these metals combine with oxygen from air and moisture and form a protective thin layer over the iron surface which stops the corrosion.
So, the statement “Iron articles rust readily whereas steel which is also mainly made of iron will not undergo corrosion” is true.

Note: We can also apply paint, oil, or grease over the iron articles to prevent the iron from rusting. Rust is mainly the hydrated form of ferric oxide, having formula $F{{e}_{2}}{{O}_{3}}.x{{H}_{2}}O$.