(a(i))[1]
Which substance below is an iron ore? Circle the correct choice. bauxite graphite hematite limestone
(a(ii))[1]
How does this equation demonstrate that $\text{Fe}_2\text{O}_3$ is reduced?
(a(iii))[1]
Explain how the diagram indicates that the reaction is endothermic.
(a(iv))[1]
Explain why iron is extracted by reduction with carbon and not by electrolysis. In your answer, refer to where iron is found in the reactivity series.
(b)[3]
Describe three properties of iron that show that it is a transition element rather than a Group I element.
(c(i))[2]
Balance this chemical equation. ....Fe + ....Cl$_2$ $\rightarrow$ Fe$_2$Cl$_6$
(c(ii))[1]
What does the symbol $\rightleftharpoons$ mean?
(d)[1]
Deduce the molecular formula of this ion, showing the numbers of iron, carbon and nitrogen atoms.