Which of the following is an alloy of cobalt?

Correct option is A

The correct answer is: (a) Vitallium

Explanation:

• Vitallium is a cobalt-chromium-molybdenum alloy primarily used in dental and surgical implants due to its strength, corrosion resistance, and biocompatibility.

• It is specifically an alloy of cobalt with other metals.

Information Booster:

• Vitallium is used for artificial joints, dental prosthetics, and bone plates.

• The alloy exhibits excellent wear resistance and is non-toxic to human tissues.

• It was developed in the 1930s for medical applications.

• Cobalt alloys like Vitallium have high melting points and mechanical strength.

• Cobalt-based alloys are also used in aerospace and turbine blades.

Additional Information:

• Brass: An alloy of copper and zinc, used in musical instruments, fittings, and decorative items.

• Invar: An iron-nickel alloy known for low thermal expansion, used in precision instruments.

• Solder: Typically an alloy of tin and lead, used to join metal parts electrically and mechanically.