DURING THE EXTRACTION OF IRON IN THE BLAST FURNACE, SLAG IS PRODUCED USING

• A. carbon
• B. cryolite
• C. limestone ✓
• D. oxygen
• E. sulphur

The answer to the question is: C. limestone

During the extraction of iron in the blast furnace, slag is produced using limestone. Limestone is a key component in the production of slag as it acts as a flux, aiding in the removal of impurities from the iron ore and forming a molten slag. The addition of limestone to the blast furnace helps to lower the melting point of the iron, allowing it to separate from the impurities more easily. This process results in the formation of slag, which can be tapped off from the top of the molten iron and used for various applications such as construction materials.