Consider the following statements: 1. Hematite iron ore is often associated with sedimentary rocks. 2. Iron ore pellets are small, hard, spherical particles made from fine iron ore concentrate. 3. Sponge iron refers to a type of cast iron with high carbon content and brittle properties. How many of the statements given above are correct? |ForumIAS

Q. Consider the following statements:
1.Hematite iron ore is often associated with sedimentary rocks.
2.Iron ore pellets are small, hard, spherical particles made from fine iron ore concentrate.
3.Sponge iron refers to a type of cast iron with high carbon content and brittle properties.
How many of the statements given above are correct?

[A] Only one

[B] Only two

[C] All three

[D] None

Answer: B

Notes:

Explanation –

Statements 1 and 2 are correct. Hematite is commonly found in sedimentary rocks and is one of the primary iron ores. Iron ore pellets are small, hard, spherical particles made from fine iron ore concentrate, and they are the principal raw material for blast furnaces.

Statement 3 is incorrect. Sponge iron, also known as direct-reduced iron (DRI), is a high-quality iron ore product made from iron ore fines and is used in the production of steel. It is not a type of cast iron with high carbon content and brittle properties. Sponge iron is produced from the direct reduction of iron ore (in the form of lumps, pellets, or fines) into iron by a reducing gas which either contains elemental carbon (produced from natural gas or coal) or hydrogen.

Source: Forum IAS

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