Question

what is the meaning of redox reaction and give eg​

Answer 1

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.

eg- hydrogen is oxidized and loses two electrons, so each hydrogen becomes positive.

H

2

+2F→2HF

Answer 2

• In a chemical reaction when a substance lose or gain oxygen then such a reaction is know as oxidation and reduction reaction or redox reaction.

• Oxidised - When a substance gain oxygen or lose hydrogen it is said to be oxidised.

• Reduced- When a substance lose oxygen or gain hydrogen it is said to be reduced

Hope it is helpful