Q. 13 D

Identify the substance oxidized reduced, oxidizing agent and a reducing agent for each of the following reactions:

N2H4 (l) + 2H2O2 (l) N2(g) + 4H2O(l)

Answer :

Oxidised substance:- N2H4

Reduced Substance:- H2O2

Reducing agent:- N2H4

Oxidising agent:- H2O2

Explanation:- Oxidising agent is a reagent which can increase the O.N. of an element in a given substance.

H2O2 helps nitrogen to increase its Oxidation state.

The reduced substance is a reagent whose oxidation state has been decreased.

Here in this case, O in H2O2 has -1 oxidation state and the O.N. is reduced to -2 as oxygen in the product side is present in -2 O.N.

The oxidised substance is a reagent whose oxidation state has been decreased.

N in N2H4 is present in -2 O.N which is increased to zero in the product side where N is present as N2 (its elemental form)

Reducing Agent is a reagent which lowers the oxidation number of an element in a given substance.

N2H4 helps oxygen to decrease its O.N.

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