Question 39
Mining and EnergyThe use of limestone in the process of smelting iron ore is for it to
- A.act as a flux to remove impurities from the iron ore
- B.combine with rock waste to reduce heat
- C.produce heat for melting iron ore during the day
- D.speed up the process of steel making during the day
Show the answer and explanation
Answer: A (act as a flux to remove impurities from the iron ore)
Explanation
Limestone acts as a flux, combining with impurities to form slag.