Question

justify the following reaction as redox reaction
2 Na(s) + S(s)——>Na2 S(s)
Find out the oxidizing and reducing agent​

Answer 1

Answer:

Oxidizing agent:S

Reducing agent:Na

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Answer 2

Sulphur acts as oxidizing agent and sodium acts as reducing agent .

Explanation:

Oxidation-reduction reaction or redox reaction is defined as the reaction in which oxidation and reduction reactions occur simultaneously.

Oxidation reaction is defined as the reaction in which a substance looses its electrons. The oxidation state of the substance increases.

Reduction reaction is defined as the reaction in which a substance gains electrons. The oxidation state of the substance gets reduced.

$2Na(s)+S(s)\rightarrow Na_2S(s)$

On reactant side:

Oxidation state of sodium = 0

Oxidation state of sulphur = 0

On product side:

Oxidation state of sodium = +1

Oxidation state of sulphur = -2

The oxidation state of sulphur reduces from 0 to -2, it is getting reduced. Thus, it is getting reduced and acts as oxidizing agent.

The oxidation state of sodium increases from 0 to +1. Thus, it is getting oxidized and acts as reducing agent .

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