Question

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

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

Answer 1

The correct option is C (i), (iii) and (iv)

• For cooking utensils, the materials should be able to transfer heat, to cook food. They should be able to withstand high heat and should not corrode.
• Aluminium has a good thermal conductivity, a high melting point and it is resistant to corrosion.
• It reacts with oxygen to form a protective layer on its surface which prevents the corrosion of metal.

Hence, because of these properties aluminium is used to make cooking utensils.