Define the terms oxidation and reduction in terms of oxidation nu… - Vidyadip

Question

Define the terms oxidation and reduction in terms of oxidation number.

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Answer

i. Oxidation is an increase in the oxidation number of an element in a given substance.
$
\text { e.g. } Fe _{( s )} \rightarrow Fe _{( aq )}^{2+}
$
ii. Reduction is a decrease in the oxidation number of an element in a given substance. e.g. $Cu _{( aq )}^{2+} \rightarrow Cu _{( s )}$

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