Question

What happens when an iron nail is exposed to air and water?

Answer 1

The process of rusting will occur if an iron nail is exposed to air and water.

• In a humid atmosphere, oxygen in the atmosphere reacts with iron and water from the moisture to form iron oxide.
• The iron oxide is also referred to as rust.
• The rust can be described as a reddish brown coating that will develop on the iron.
• Rusting leads to corrosion of iron and hence things made of iron are kept away from air and water.