MCQ Detailed View

Bronze is a well-known metal alloy that has been used by humans for thousands of years. An alloy is a substance formed by combining two or more metals (or a metal and a non-metal) to improve strength, durability, or other properties. Bronze is specifically an alloy made from copper and tin, usually consisting of about 88–90% copper and 10–12% tin, though the exact ratio can vary depending on its intended use.

The discovery of bronze marked an important period in human history known as the Bronze Age, where tools, weapons, and everyday objects were made stronger and more durable compared to those made from pure copper or stone. The addition of tin to copper changes its physical properties, making it harder, less brittle, and more resistant to corrosion, which made it ideal for crafting tools, machinery parts, and sculptures.

It is important to note that while brass is another copper-based alloy, it is made from copper and zinc, not copper and tin. Similarly, iron and zinc are used in galvanization and steel-making processes, but they do not produce bronze.

Bronze has a characteristic reddish-brown color and is still widely used today in making musical instruments, coins, bearings, marine equipment, and decorative art pieces, thanks to its strength and ability to withstand water and air exposure without rusting quickly.

This question falls under Chemistry because it involves the study of metallic elements, alloys, and their combinations. Understanding alloys like bronze is fundamental in learning material science, metallurgy, and basic chemistry concepts, helping students know how metals are improved for various applications.