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The option that describes a situation in which reduction occurs is Cl₂ becoming Cl⁻
In chemistry, reduction means a class of chemical reactions in which the number of electrons associated with an atom or group is increased.
A compound that accepts electrons is said to be reduced.
Situations in which reduction occurs include:
Cl₂ ⇒Cl⁻
When reduction occurs, the oxidation number (superindex) appears to decrease that number. In this case 2+ becomes 1-.
Note:
As with other problems, a decreasing oxidation number means that the compound or element is being reduced (gaining electrons), while an increasing oxidation number means it is being oxidized (losing electrons). increase.
learn more about oxidation-reduction refer:
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