Single Choice

Wrought iron is manufactured from cast iron by heating it with:

A$$C$$
B$$CaCO_3$$
C$$Fe_2O_3$$
Correct Answer
D$$SiO_2$$

Solution

Wrought iron or malleable iron is the purest form of commercial iron and is prepared from cast iron by oxidising impurities in a reverberatory furnace lined with haematite. The haematite oxidises carbon to carbon monoxide: $$Fe_2CO_3+3C \rightarrow 2Fe+3CO$$ Hence, option $$C$$ is the correct answer.

SIMILAR QUESTIONS

Metallurgy

The purest form of commercial iron is :

Metallurgy

Choose the correct statement(s). I. Pig iron contains $$4\%$$ carbon along with many impurities such as $$P, S$$ and $$Si$$. II. Cast iron contains less than $$3\%$$ carbon and is extremely hard and brittle. III. Wrought iron is the purest form of commercial iron and is prepared from cast iron.

Metallurgy

Which of the the following has lowest percentage of carbon?

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