Question

explain redox reaction with suitable example​

Answer 1

Answer:

An oxidation-reduction reaction is any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron. The formation of hydrogen fluoride is an example of a redox reaction. We can break the reaction down to analyze the oxidation and reduction of reactants

Answer 2

Definition:

Redox reaction - A reaction in which reduction and oxidation occur simultaneously.

Explanation:

Reduction - In order for reduction to happen one of the following points must happen,

i) Removal of oxygen from a compound  OR

ii) Removal of electronegative ion

iii) Addition of electropositive ion           OR

iv) Addition of hydrogen

Oxidation - In order for oxidation to happen one of the following points must happen,

i) Removal of hydrogen from a compound  OR

ii) Removal of electropositive ion

iii) Addition of electronegative ion           OR

iv) Addition of oxygen

Example:-

CuSO4 + Fe ----> FeSO4 + Cu

In the following reaction, it is observed that :

i) Copper (Cu) loses a sulphate ion, which is electronegative in nature.

Hence, reduction occurs.

NOTE:- Loss of -ve ion - REDUCTION

ii) Iron (Fe) gains a sulphate ion, which is electronegative in nature.

Hence, oxidation occurs.

NOTE:- Gain of -ve ion - OXIDATION

Hope this helps! :)