Learning objective
Identify oxidising and reducing agents from oxidation-state changes.
Read the explanation, check the common trap, then practise with flashcards and questions.
At a glance
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Flashcards
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Questions
Topic
Oxidation, reduction and redox equations
Subtopic
Oxidation states
Study support
Understand this objective
Quick explanation
Identify oxidising and reducing agents from oxidation-state changes
- This point belongs to Oxidation, reduction and redox equations, especially Oxidation states.
- You need to be able to identify oxidising and reducing agents from oxidation-state changes.
- The key ideas to know are oxidation.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
Why it matters
This objective helps connect Oxidation states to exam-style questions, flashcards, and revision notes for Oxidation, reduction and redox equations.
Quick student answer
Which of the following species is the oxidising agent in the reaction: 2MnO4^- + 5C2O4^2- + 16H^+ → 2Mn^2+ + 10CO2 + 8H2O?
Direct answer
MnO4^- is the oxidising agent.
Key terms
- Oxidation: The process of losing electrons or increasing oxidation state.
- Reduction: The process of gaining electrons or decreasing oxidation state.
Common trap
Confusing oxidising and reducing agents: Remember that oxidising agents gain electrons and reducing agents lose electrons.
Related questions
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Flashcard prompts
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Revision tools
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Practice Questions0 linked questions
Revision notestopic notes
Open the full topic revision notes when you are ready to review this objective in context.
Open revision notesRelated learning objectives
- Define oxidation as an increase in oxidation state.
Oxidation states
- Define reduction as a decrease in oxidation state.
Oxidation states
- Assign oxidation states using standard rules.
Oxidation states
- Write half equations for oxidation and reduction processes.
Redox equations
- Combine half equations into overall redox equations.
Redox equations