Learning objective
Define reduction as a decrease in oxidation state.
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
Define reduction as a decrease in oxidation state
- This point belongs to Oxidation, reduction and redox equations, especially Oxidation states.
- You need to be able to define reduction as a decrease in oxidation state.
- The key ideas to know are reduction, oxidation, and oxidation state.
- 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 represents a reduction in oxidation state?
Direct answer
Fe^3+ to Fe^2+ represents a decrease in oxidation state, indicating reduction.
Key terms
- Oxidation: An increase in oxidation state, typically involving the loss of electrons.
- Redox Reaction: A chemical reaction that involves the transfer of electrons between two species, consisting of both reduction and oxidation processes.
Common trap
Confusing oxidation with reduction: Remember that reduction is characterized by a decrease in oxidation state, while oxidation involves an increase.
Related questions
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Flashcard prompts
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Revision tools
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Revision notestopic notes
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Open revision notesRelated learning objectives
- Define oxidation as an increase in oxidation state.
Oxidation states
- Assign oxidation states using standard rules.
Oxidation states
- Identify oxidising and reducing agents from oxidation-state changes.
Oxidation states
- Write half equations for oxidation and reduction processes.
Redox equations
- Combine half equations into overall redox equations.
Redox equations