Chemistry 0620 · IGCSE · Transition elements

Transition elements — practice question

Iron(II) ions are capable of being oxidised to iron(III) ions by hydrogen peroxide. Which statement explains why iron is classed as a transition element?

  • AIron is a transition element because it can be oxidised.
  • BIron is a transition element because it has variable oxidation states.
  • CIron is a transition element because it takes part in redox reactions.
  • DIron is a transition element because it reacts with chlorine.

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