Question

Answer in brief.

Write a brief note on the three varieties of iron.

Answer 1

• The three varieties of Iron are Pig Iron, Cast Iron, and Wrought Iron.
• Pig Iron - The most impure form of Iron obtained in a blast furnace is known as pig iron.
• Cast Iron - After melting pig iron using a hot air blast, cast iron is obtained which contains less carbon content and is extremely hard and brittle.
• Wrought iron - Wrought iron is the purest form of iron. It is the purest form of iron, with $0.12\mathrm{to}0.25\%$carbon.