Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible for the same ?
(i) Good thermal conductivity
(ii) Good electrical conductivity
(iii) Ductility
(iv) High melting point

Options

A. I and ii
B. I and iii
C. ii and iii
D. I and iv

Explanation

To determine which properties of aluminium are responsible for its use in making cooking utensils, we can analyze each of the given options:

1. **Good Thermal Conductivity**: Aluminium has excellent thermal conductivity, which means it can efficiently transfer heat. This property is essential for cooking utensils as it allows for even heating and quick cooking.

2. **Good Electrical Conductivity**: While aluminium does have good electrical conductivity, this property is not particularly relevant for cooking utensils. Cooking utensils are primarily concerned with heat conduction rather than electrical conduction.

3. **Ductility**: Ductility refers to the ability of a material to be drawn into wires or stretched without breaking. Although aluminium is ductile, this property is not directly related to its effectiveness as a cooking utensil.

4. **High Melting Point**: Aluminium has a relatively high melting point, which is beneficial for cooking utensils as it allows them to withstand high temperatures without melting or deforming.

Based on the analysis, the properties of aluminium that are responsible for its use in making cooking utensils are:

- **Good Thermal Conductivity (i)**
- **High Melting Point (iv)**

Thus, the correct answer is options (i) and (iv).

### Final Answer:
The properties of aluminium responsible for making cooking utensils are:
- (i) Good thermal conductivity
- (iv) High melting point