Kno3 → kno2 + o2 which element is oxidized? which element is reduced? what is the oxidizing agent? what is the reducing agent?

Answer :

The oxidized element is, oxygen.

The reduced element is, nitrogen.

The oxidizing agent is, nitrogen.

The reducing agent is, oxygen.

Explanation :

Oxidation reaction : It is defined as the reaction in which a substance looses its electrons. In this, oxidation state of an element increases.

Reduction reaction : It is defined as the reaction in which a substance gains electrons. In this, oxidation state of an element decreases.

Reducing agent : It is defined as the agent which helps the other substance to reduce and itself gets oxidized.

Oxidizing agent : It is defined as the agent which helps the other substance to oxidize and itself gets reduced.

The given balanced oxidation-reduction is :

First we have to determine the oxidation state of nitrogen and oxygen in .

The oxidation state of nitrogen in .

Let the oxidation state of 'N' be, 'x'.

The oxidation state of nitrogen in .

The oxidation state of oxygen in is, (-2).

The oxidation state of oxygen in is, 0.

From the given reaction we conclude that, the oxidation state of 'N' changes from (+5) to (+3) that means 'N' gain 2 electrons and it shows reduction and also known as oxidizing agent. The oxidation state of 'O' changes from (-2) to (0) that means 'O' lost 2 electrons and it shows oxidation and also know as reducing agent.

Hence, the oxidized element is, oxygen. The reduced element is, nitrogen. The oxidizing agent is, nitrogen. The reducing agent is, oxygen.

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the answer would be b i believe