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 process of extraction of iron from its ore is?The function of limestone in the extraction of iron…''.....If it be so; our God whom we serve is able to…In the extraction of iron; hot air is introduced…The main function of limestone in the blast furnace is to?