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Learning objective

Discuss the variable oxidation states of transition metal ions, specifically including iron in its +2 and +3 oxidation states.

Read the explanation, check the common trap, then practise with flashcards and questions.

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  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE ChemistryThe Periodic TableSupplement content

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Quick explanation

Discuss the variable oxidation states of transition metal ions, specifically including iron in its +2 and +3 oxidation states

  • This point belongs to Transition elements, especially Transition elements outcomes.
  • You need to be able to discuss the variable oxidation states of transition metal ions, specifically including iron in its +2 and +3 oxidation states.
  • The key ideas to know are Describe, Discuss, and Identify.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

DescribeDiscussIdentify

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This objective helps connect Transition elements outcomes to exam-style questions, flashcards, and revision notes for Transition elements.

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Paper 4 structured question: Transition elements

Paper 4Theory (Extended)1 marks

Description

Oxidation States of Iron

Iron can exist in +2 and +3 oxidation states, which affect its chemical properties and reactions.

  1. a

    State the two common oxidation states of iron.

    Aim for approximately 1 distinct marking point.

    [1]
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