Which of the following are physical changes?
(i) Melting of iron metal
(ii) Rusting of iron
(iv) Bending of an iron rod
(v) Drawing a wire of iron metal

Options

A. (i), (ii) and (iii)
B. (i) ,(ii) and (iv)
C. (i), (iii) and (iv)
D. (ii), (iii) and (iv)

Explanation

To determine which of the given options are physical changes, we need to analyze each option based on the definition of physical changes. Physical changes are changes that do not alter the chemical composition of a substance; they only change the physical state or appearance.

1. **Melting of iron metal**:
- When iron metal melts, it changes from a solid state to a liquid state. This is a physical change because no new substance is formed; only the state of the iron changes.

2. **Rusting of iron**:
- Rusting is a chemical change. When iron rusts, it reacts with oxygen in the presence of moisture to form iron oxide (Fe2O3), which is a new substance. Therefore, this is not a physical change.

3. **Bending of an iron rod**:
- Bending an iron rod changes its shape but does not change its chemical composition. Thus, this is a physical change.

4. **Drawing a wire of iron metal**:
- Drawing a wire involves stretching the iron metal into a wire form. This process changes the shape of the iron but does not change its chemical composition. Hence, this is also a physical change.

Based on the analysis:
- **Physical Changes**:
- (i) Melting of iron metal
- (iii) Bending of an iron rod
- (iv) Drawing a wire of iron metal

Therefore, the correct options that represent physical changes are (i), (iii), and (iv).

### Final Answer:
The physical changes are:
- (i) Melting of iron metal
- (iii) Bending of an iron rod
- (iv) Drawing a wire of iron metal