Asingle-displacement reaction is always a redox reaction, but a redox reaction isn't always a single-displacement reaction.

true or false

The correct answer is True.

Explanation:

Single displacement reaction is defined as the reaction in which more reactive element displaces the less reactive element from its chemical reaction. General equation for this reaction follows:

B is more reactive element than A.

Redox reaction is defined as the reaction in which oxidation and reduction reactions occur simultaneously.

Oxidation reaction is defined as the chemical reaction where a substance looses its electrons. The oxidation state of the substance gets increased and the substance gets oxidized.

Reduction reaction is defined as the chemical reaction where a substance gains electrons. The oxidation state of the substance gets reduced and the substance gets reduced.

Examples of single displacement and redox reactions:

Here, zinc is loosing 2 electrons so it is undergoing oxidation reaction and hydrogen ion is gaining 2 electrons. So, it is undergoing reduction reaction. Thus, it is considered as a redox reaction.

Here, oxidation state of carbon is increasing from -4 to +4, so it is undergoing oxidation reaction and oxidation state of oxygen is decreasing from 0 to -2, so it is undergoing reduction reaction. The above reaction is not a single displacement reaction.

From above information, it is clearly seen that all the single displacement reaction are redox reaction but reverse is not correct.

Hence, the correct answer is True.

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