Question

Examples of malleable metals are:
(A) gold and lead
(B) aluminium and copper
(C) silver
(D) all of the above

Answer 1

Hint: Metals and non-metals can be distinguished on the basis of their physical and chemical properties. The properties like hardness, lustrous, malleable, ductile, sonorous and conductivity of metals and non-metals.

Complete step by step solution:
Metals have various properties:
The property of a metal which can be drawn into thin wires is called ductility. For example, copper, aluminium.
The property of metal when things made by metals produce a ringing sound when struck hard. The metals produced ringing sounds said to be sonorous. This property of a metal is known as sonority. For example, silver
When a metal surface is exposed to the dry or wet atmosphere, the destruction of metal surface starts at the metal surface, and the formation of metal oxides is known as corrosion of metal. For example, rusting of iron.
The metals property which can be beaten into thin sheets, then the property is called malleability. This property is observed by metals that can be drawn into sheets when hammered. Example: steel, aluminium, copper, silver, lead etc.
So, from this, we can say that examples of malleable metals are gold, silver, aluminium, copper, lead.

Therefore, option (D) is correct.

Note: The non-metals are not sonorous, non-malleable, non-ductile and poor conductors of heat and electricity. The examples of non-metals which exhibit these types of properties are sulphur, carbon, oxygen, phosphorus, etc.