Cl- oxidation number
Solution
The oxidation number of Chlorine (Cl) depends on the compound it is in.
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In elemental form (Cl2), the oxidation number is 0.
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In most compounds, it has an oxidation number of -1. For example, in NaCl, the oxidation number of Cl is -1.
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However, in compounds with Oxygen or Fluorine, Chlorine can have positive oxidation numbers. For example, in ClO-, the oxidation number of Cl is +1. In ClO3-, the oxidation number of Cl is +5. In ClO4-, the oxidation number of Cl is +7.
So, the oxidation number of Cl can vary from -1 to +7 depending on the compound it is in.
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