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∆Rule of oxidation number method ?
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reaction in which oxygen less is called oxidation
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The convention is that the cation is written first in a formula, followed by the anion. ...
The oxidation number of a free element is always 0. ...
The oxidation number of a monatomic ion equals the charge of the ion. ...
The usual oxidation number of hydrogen is +1. ...
The oxidation number of oxygen in compounds is usually -2.
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