The correct answer is 2.
In oxidation-reduction reactions (or redox reactions), a number of electrons are transferred between two species. During this process, the oxidation number of an atom (or molecule or ion) changes by receiving or losing an electron.
Answer: It is number 2
The correct answer is 2. Oxidation-reduction reactions (redox reactions) are where electrons are transferred between substances, with one substance oxidizing (losing electrons) and another reducing (gaining electrons). These reactions are critical for processes like energy production and various chemical reactions.
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