I keep getting “Oxidising and reducing agents” questions wrong in Redox Reactions. What's the trap?
calling the substance that is oxidised the 'oxidising agent'.
The usual trap: calling the substance that is oxidised the 'oxidising agent'. How to avoid it: the agent does the opposite to itself — an oxidising agent is itself reduced. Go back to the definition — the oxidising agent gets reduced (gains electrons); the reducing agent gets oxidised (loses electrons).
Key point
Oxidising and reducing agents
Common mistake
calling the substance that is oxidised the 'oxidising agent'.
Memory tip
the agent does the opposite to itself — an oxidising agent is itself reduced.
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