Question

The alloy of copper and tin is:
a.) Bronze
b.) Brass
c.) Solder metal
d.) Stainless steel

Answer 1

Hint: In this question both tin and copper are pure metals and are relatively soft. Moreover, it does not hold an edge. Bronze is made when the metals are mixed as an alloy, approx. 10-12% tin. There are two types of alloy of copper bronze and brass.

Complete step-by-step answer:
An alloy with tin added to copper is known as bronze. Bronze is more fusible (more readily melted). Thus, it is harder than copper as a result of alloying that metal with tin or other metals. As the two metals are melted, they combine to form liquid bronze. Then it is poured into clay or sand molds and allowed to cool. The advantage of bronze is that it is tough and durable as well, but it is not flexible at all. In other words we can also say that it is the most durable man made, material bronze is most commonly found in utensils.
The major alloys of copper are: arsenical copper, beryllium copper, billon, Chinese silver, etc. among all these the beryllium copper is the hardest and the strongest. Rusting is commonly referred to as oxidation and it does not take place in copper which means copper does not rust.

Note: Most important Bronze is widely used for springs, bearings, automobiles. However, it conducts heat and electricity, better than most steels. The disadvantage of bronze is that it is softer, expensive, weaker than steel.