What is meant by the rusting of iron ? State two conditions necessary for the rusting of iron to occur. Explain how, rusting damages iron objects.

Explanation

### Step-by-Step Solution

**Step 1: Definition of Rusting of Iron**
Rusting of iron is a chemical process in which iron reacts with oxygen in the presence of moisture (water) to form a reddish-brown flaky substance known as rust. The chemical reaction can be represented as:
\[ 4Fe + 3O_2 + 6H_2O \rightarrow 4Fe(OH)_3 \]
This further dehydrates to form hydrated ferric oxide, commonly referred to as rust.
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