Which of the following alloys does NOT contain tin?

Correct option is C

Correct Answer: C). Brass

Explanation:
Brass is an alloy of copper (Cu) and zinc (Zn), and it does not contain tin (Sn). It is widely used for making musical instruments, decorative items, and plumbing fittings due to its corrosion resistance and malleability.

Information Booster:
Brass composition: Copper (around 60-70%) + Zinc (30-40%)
Brass is commonly used in electrical connectors, ammunition casings, and coins due to its non-corrosive and antimicrobial properties.
It has a gold-like appearance, making it popular in jewelry and home décor.

Additional Information:
A. Gun metal –  it is an alloy of copper, tin, and zinc used in firearms and machinery.
B. Bell metal –  it contains copper and tin (high tin content ~20-25%) and is used in making bells and gongs.
D. Bronze –  it is an alloy of copper and tin and is used for statues, medals, and tools.