Interpretation:
The definition for given terms oxidation and reduction has to be defined in terms of electron transfer and change in oxidation number.
Concept Introduction:
Oxidation: If electrons are moved from a species during a
Reduction: If electrons are gained to a species during a chemical reaction. The species which gets electrons are said to be reduced.
Redox reaction: It occurs when oxidation and reduction takes place at the same time in a chemical reaction.

Explanation of Solution
The term oxidation is defined as loss of electrons from a compound and it is said to be oxidized. This results in increased oxidation number of that compound.
The term reduction is defined as gain of electrons by a compound and it is said to be reduced. This results in decreased oxidation number of that compound.
In
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Chapter 21 Solutions
CHEMISTRY MOLECULAR NATURE OF MATTER
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