Rusting of iron is an example of:Physical propertyChemical propertyPhysical changeChemical changeSave

Rusting of iron is an example of a Chemical Change.

Here's why:

1. Rusting of iron involves a change in its chemical properties. It is a process that happens when iron comes into contact with water and oxygen, resulting in the formation of Iron Oxide, commonly known as rust.

2. This process is not reversible, which is a characteristic of a chemical change. Once the iron has rusted, you cannot change it back to its original form.

3. During the rusting process, the iron (Fe) reacts with oxygen (O2) in the air to form iron(III) oxide (Fe2O3). The chemical equation for this reaction is 4Fe + 3O2 → 2Fe2O3. This shows that new substances are formed, which is another characteristic of a chemical change.

4. The rusting process also involves energy changes. Energy is absorbed from the surroundings in the form of heat, which is another sign of a chemical change.

So, rusting of iron is a chemical change.