This video lecture from Electrochemistry (F.Sc. first year Chemistry) covers an introduction to the subject of electrochemistry. Electrochemistry is concerned with the conversion of electrical energy into chemical energy and vice versa. An introduction to redox reactions is given in which reduction and oxidation takes place. The oxidation number of an element in a redox equation is discussed in detail. Find more e-learning material and educational video lectures in Urdu at maktab.pk. These videos are free to use for promotional and commercial purpose by keeping the credits to Maktab.