Essential Chemistry for IGCSE - Metal Extraction (Section 2 - No. 40)
Why is it necessary to remove impurities from iron ore before it is used in a blast furnace?
To increase the amount of slag produced.
To reduce the melting point of the iron.
To make the iron stronger.
To prevent the formation of unwanted products.
Explanation
Impurities can react to form unwanted byproducts or weaken the final product.
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