Identify the subs

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.