Single Choice

The main difference between cast iron and pig iron is that:

Acast iron is purest from iron while pig iron is impure
Bcast iron has lower carbon content (3%) as compared to pig iron (4%) and is extremely hard and brittle
Correct Answer
Cpig iron contains many impurities like $$S, \ P,\ Si$$ and $$Mn$$ while cast iron does not contain any impurity and can be cast into any shape
Dcast iron is soft and malleable while pig iron is extremely hard and brittle

Solution

The iron obtained from Blast furnace contains about 4% carbon and many impurities in the smaller amount (e.g., $$S,\ P,\ Si,\ Mn$$). This is known as pig iron. It can be moulded into variety of shapes. Cast iron is different from pig iron and is made by melting pig iron with scrap iron and coke using hot air blast. It has slightly lower carbon content (about 3%) and is extremely hard and brittle. Hence, option $$B$$ is the correct answer.

SIMILAR QUESTIONS

Metallurgy

The form of iron obtained from blast furnace is:

Metallurgy

Identify the correct statement from the following :

Metallurgy

The advantage(s) of using $${O}_{2}$$ rather than air in the steel industry is (are): $$(I)$$ There is a faster conversion, so a given plant can produce more in day $$(II)$$ Larger quantities can be handled $$(III)$$ It gives a pure product, and the surface is free from nitrides.

Metallurgy

Which of the following process is not associated with steel making?

Metallurgy

The conversion of pig iron to steel frequently requires the addition of: $$(I)$$ oxygen or iron oxide $$(II)$$ transition elements $$(III)$$ inner transition elements $$(IV)$$ silica

Metallurgy

Describe how the following changes are brought about: Pig iron into steel.

Metallurgy

Among pig iron and wrought iron, which is used for making tools? Why?

Metallurgy

The form of iron obtained from blast furnace is:

Contact Details