Copper is used for making electrical wires. Which of the following properties of aluminium is responsible for the same? i) Malleability ii) Good electrical conductivity iii) Ductility iv) Metallic lustre
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Explanation:
The options (i) and (iv) are correct.
Aluminium is ductile and has high electrical conductivity and this property is not useful in the making of utensils.
Aluminium has good thermal conductivity and high melting point.
The commonly used metals in making utensils are copper, steel (alloy of iron) and aluminium.
Copper and aluminium are the most preferred due to their conduction of heat.
Hence the correct option is D.
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