During the extraction of iron in the blast furnace; slag is produced using? by Sunday | Apr 17 | Chemistry NECO | 0 comments A. carbon B. crylite C. limestone D. oxygen E. sulphur Correct Answer: Option C – limestone Users Also Read These:The earthly impurities in iron ore are removed in…The main impurity in iron ore during the extraction…Which of the following is needed to produce slag…The process of extraction of iron from its ore is?In the extraction of iron, the waste gas from the…