What is redox reaction ? Explain its uses.

Explanation

Changes of oxidation number of reactants in chemical reaction is known as redox reaction. Redox reaction is combination of oxidation and reduction reaction.
Uses : (i) These reactions find extensive use in pharmaceutical, biological, industrial, metallurgical and agricultural areas. (ii) Uses in proffesional purposes and in different types of fuel. (iii) Uses in industrial preparation of NaOH. (iv) Operation of dry and wet batteries. (v) Electro-chemical processes for extraction of highly reactive metals and non-metals. (vi) In production of hydrogen. (vii) Devolopment of ozone hole in zone layer.