Oxidising Agent and Reducing Agent

Oxidation & Reduction || Oxidising Agent & Reducing Agent || Redox rection & their types

Name the substance oxidised and the substance reduced, and also identify the oxidising agent and reducing agents in the following reactions : (a) 3MnO_(2) +4Al to 3Mn +2Al_(2)O_(3) (b) Fe_(2)O_(3) + 3CO to 2Fe + 3CO_(2) (c) SO_(2) + 2H_(2)S to 3S +2H_(2)O

In the following reaction, identify the speech oxidised, the species reduced, the oxidising agent and reducing agent. (a). 4HCl+MnO_(2)=MnCl_(2)+2H_(2)O+Cl_(2) (b). SnCl_(2)+2FeCl_(3)=SnCl_(4)+2FeCl_(2) (c ). 2H^(+)+Mg=Mg^(2+)+H_(2) (d). H_(2)SO_(3)+2H_(2)S=3S+2H_(2)O

Whenever a reaction between an oxidising agent and a reducing agent is carried out, a compound of lower oxidation state is formed if the reducing agent is in excess and a compound of higher oxidation state is formed if the oxidising agent is in excess. Justify this statement giving three illustrations.

In which of the solution hydrogen peroxide neither acts as oxidising agent nor reducing agent ?

Hydrogen perioxde acts both as an oxidising agent and as reducing agent in alkaline solution towards certain first row transition metal ions. Iiustrate both these properties of H_(2)O_(2) using chemical equation.