Essential Chemistry for IGCSE - Chemical Reactions (Section 5 - No. 40)
Which of the following statements correctly describes a redox reaction?
Oxidation and reduction occur simultaneously.
The oxidation number of the oxidizing agent decreases.
The oxidizing agent is oxidized.
The reducing agent is reduced.
Explanation
Oxidation and reduction always occur together. The oxidizing agent is reduced (its oxidation number decreases), and the reducing agent is oxidized. The oxidizing agent causes oxidation by accepting electrons.
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