ELECTROCHEMISTRY : Galvanic OR voltaic cell, Representation of an electrochemical cell, Emf OR cell potential of a cell, Nernst equation, Types of electrodes, Electrochemical series, Calomel electrode, Ion-selective electrodes-glass electrode, Battery, Potentiometric titrations. CORROSION AND ITS CONTROL : factors influencing corrosion, Corrosion control methods, Electroless plating of nickel.