Introduction

Chemistry deals with varieties of matter and change of one kind of matter into the other. Transformation of matter from one kind into another occurs through the various types of reactions. One important category of such reactions is Redox Reactions.

These reactions find extensive use in pharmaceutical, biological, industrial, metallurgical and agricultural areas. The importance of these reaction is apparent from obtaining energy for domestic, transport and other commercial purposes, electrochemical processes for extraction of highly reactive metals and non- metals, manufacturing of chemical compounds like caustic soda, operation of dry and wet batteries and corrosion of metals fall within the purview of redox processes.