Question

Bell-metal is an alloy of:
A.$Cu + Pb$
B.$Cu + Sn$
C.$Cu + Zn$
D.$Cu + Ni$

Answer 1

Hint: An alloy is a combination of metals or the metals combined with each other. It is made up of two or more than two chemical elements. For making an alloy at least one metal should be present. Alloys have different properties from metals, actually they are the advanced form of metals with better properties.

Complete step by step answer:
As given in our problem, Bell-metal is an alloy, according to its name it is used to make bells such as cymbals. It is very hard in nature. It is basically a form of bronze with higher concentration of tin.
It is made up from the mixing of copper and tin ($Cu + Sn$).
The mixing of copper and tin is done in $4:1$ respectively.
This combination usually provides sonority property to the alloy. The alloy made up from the combination of copper and tin produces resonant sounds which makes it suitable for making bells such as cymbals.
Hence Bell-metal is an alloy of $Cu + Sn$.
So, option (B) is correct.

Note:
Copper is a metal with a reddish appearance. Humans widely use copper in industries as well as for agriculture purposes also. Mostly it is used in electrical appliances as it is conducting, durable and can be woven into wires easily due to its ductility property.