In the extraction of iron, what is the role of limestone?

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Question: In the extraction of iron, what is the role of limestone?

Options:

Correct Answer: To form slag

Solution:

Limestone is added to form slag, which helps remove impurities during the extraction of iron.

In the extraction of iron, what is the role of limestone?

In the extraction of iron, what is the role of limestone?

Step 1: Understand that iron is extracted from iron ore in a blast furnace.
Step 2: Know that iron ore contains impurities that need to be removed.
Step 3: Learn that limestone is added to the blast furnace during the extraction process.
Step 4: Realize that limestone reacts with the impurities in the iron ore.
Step 5: Understand that this reaction forms a substance called slag.
Step 6: Know that slag is lighter than molten iron and floats on top.
Step 7: Recognize that the slag can be easily removed, taking the impurities with it.

Role of Limestone in Iron Extraction – Limestone acts as a flux in the extraction of iron, helping to remove impurities by forming slag.