(a)[2]
Which substance is reduced in this reaction? Give a reason for your choice.
(b(i))[1]
What does the term ore mean?
(b(ii))[1]
What is the role of this air?
(b(iii))[1]
Which of the following is slag? Tick one box.
(b(iv))[1]
Put the letter S on the diagram to indicate where slag is taken out.
(c)[4]
Describe how iron is changed into steel. In your answer, explain the impurities present, explain how those impurities are removed, and include a relevant word equation.