Q. 13 A3.8( 19 Votes )

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

2AgBr (s) + C6H6O2 (aq) 2Ag(s) + 2HBr (aq) + C6H4O2(aq)

Answer :

Oxidised substance:- C6H6O2


Reduced Substance:-AgBr


Reducing agent:- C6H6O2


Oxidising agent:-AgBr


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


Here, AgBr helps carbon in C6H6O2 to increase its oxidation number.


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


Here, in this case, Ag in AgBr has + 1 oxidation state and the O.N. is reduced to zero as Ag in the product side is present in zero O.N. (its elemental form)


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


C in C6H6O2 has O.N. of -0.33 which is being increased to zero in C6H4O2


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


C6H6O2 helps Ag of AgBr to decrease its oxidation state.


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