Question

what is redox reaction explain with examples

Answer 1

Hey,
Redox reactions are the reactions involving the oxidation of one substance and the reduction of the other.
For example - H2s+Cl2-> HCl+S.
Hope this helps you!!

Answer 2

Answer: Oxidation-reduction reaction or redox reaction is defined as the reaction in which oxidation and reduction reactions occur simultaneously.

Oxidation reaction is defined as the reaction in which a substance looses its electrons. The oxidation state of the substance increases.

Reduction reaction is defined as the reaction in which a substance gains electrons. The oxidation state of the substance gets reduced.

Example:

$2HCl+S\rightarrow H_2S+Cl_2$

On reactant side:

Oxidation state of chlorine = -1

Oxidation state of sulphur = 0

On product side:

Oxidation state of chlorine = 0

Oxidation state of sulphur = -2

The oxidation state of sulphur reduces from 0 to -2, it is getting reduced and it undergoes reduction reaction. The oxidation state of chlorine increases from -1 to 0. Thus, it is getting oxidized and it undergoes oxidation reaction.

Thus, it is considered as redox reaction.