Bronze medal is a mixture of

Correct option is A

The correct answer is (a) Cu + Sn
Bronze is an alloy primarily made of copper (Cu) and tin (Sn). It is one of the oldest known metal alloys, widely used in various applications, including medals, statues, and industrial tools.

Key Points:

Composition of Bronze:

• Copper (Cu): The primary component, typically comprising 88-90%.
• Tin (Sn): Added in smaller quantities (around 10-12%) to enhance strength, durability, and corrosion resistance.

Properties of Bronze:

• Stronger and harder than pure copper.
• Resistant to corrosion and wear.
• Has a reddish-brown color, which develops a greenish patina over time.

Other Options:

• Cu + Zn: This is brass, another alloy used for decorative and industrial purposes.
• Cu + Si: This could refer to silicon bronze, which is a different alloy used in specific engineering applications.
• None: Incorrect, as bronze is clearly a mixture of Cu + Sn.

Additional Information:

• Bronze Medals: While symbolic, actual bronze medals awarded in competitions may contain a mix of other metals (like zinc or nickel) for cost efficiency. However, the term "bronze" historically signifies the Cu + Sn alloy.
• Historical Context: Bronze was widely used during the Bronze Age, marking a significant period in human history.