Which of the following is needed to produce slag during the extraction of iron in the blast furnace? by Sunday | Aug 21 | Chemistry WAEC | 0 comments A. Cryolite B. Limestone C. Carbon D. Sulphur Correct Answer: Option B – Limestone Users Also Read These:In the extraction of iron, the waste gas from the…The earthly impurities in iron ore are removed in…The process of seeding during the extraction of…The main function of limestone in the blast furnace is to?''.....If it be so; our God whom we serve is able to…