Question detail
In a redox reaction, if substance A loses electrons and substance B gains electrons, which substance is oxidised and which is reduced?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Reactivity of metals
Question
In a redox reaction, if substance A loses electrons and substance B gains electrons, which substance is oxidised and which is reduced?
Answer
Substance A is oxidised because it loses electrons, while substance B is reduced because it gains electrons.
Explanation
This answer effectively identifies the roles of the substances in the redox reaction, demonstrating an understanding of oxidation and reduction processes. The question tests the student's ability to apply their knowledge of electron transfer in redox reactions.
Common mistake
Confusing Oxidation with Other Processes
Students often confuse oxidation as simply a reaction with oxygen rather than understanding it as the loss of electrons.
To fix this, students should focus on the definition of oxidation as the loss of electrons and practice identifying oxidation in various reactions, ensuring they differentiate it from reactions involving oxygen.
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