Which of the Following Is NOT Associated with the Production $\circ$

question 172

Multiple Choice

Which of the following is NOT associated with the production of iron from iron ore in blast furnaces?

• A)Iron ore,coke,and limestone are used.
• B)Solid by-products collect on top of molten iron,which is removed from the bottom of the reaction vessel.
• C)Molten iron crystallizes at its melting point of 1538 \(\circ\) C in a bcc structure but then undergoes a phase transition at around 1390 \(\circ\) C to a fcc structure.
• D)Limestone (CaCO₃)decomposes to form lime (CaO),which can react with silica impurities (SiO₂)in the iron ore.
• E)The carbon content is reduced by heating the impure molten iron in a second furnace to temperatures above 1600 \(\circ\) C.

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