Question

Given the following materials- Tin, Sulphur, Sodium and Silver.
Identify the material of choice for the following.
(a) Manufacturing bells
(b) In jewellery
(c) As an insulator

• A. (a)- Silver, (b)- Sodium, (c)- Tin
• B. (a)- Sodium, (b)- Silver, (c)- Tin
• C. (a)- Tin, (b)-Sodium, (c)- Sulphur
• D. (a)- Tin, (b)- Silver, (c)- Sulphur

Answer 1

The correct option is D (a)- Tin, (b)- Silver, (c)- Sulphur

• Metals are used in making bells because they are sonorous (produce ringing sounds on hitting). The metals commonly used for manufacturing bells include tin and copper.
• Metals are used in making jewellery as they are lustrous, ductile and malleable. Silver, gold and platinum are commonly used in making jewellery as they remain lustrous for years.
• Sodium metal is highly reactive and may react explosively in presence of air and water, hence, cannot be used for these applications.
• Non-metals, such as Sulphur are generally insulators as they do not conduct heat and electricity.