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SingaporeChemistryQuick questions
Energetics, Rates and Redox
Quick questions on Oxidation and reduction (redox): N(A)-Level Chemistry
5short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is definition by oxygen?Show answer
The simplest way to start is with oxygen:
What are definition by electrons?Show answer
The more powerful definition uses electrons. A helpful memory aid is OIL RIG:
What is q1?Show answer
State the meaning of oxidation in terms of electrons. [1 mark]
What is q2?Show answer
In a reaction a substance gains oxygen. State whether it has been oxidised or reduced. [1 mark]
What is q3?Show answer
Explain why every reaction in which one substance is oxidised must also involve a substance being reduced. [2 marks]
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