Conductance of electrolytes; specific resistance and conductance; cell constant; molar and equivalent conductance and their units; variation of conductance with concentration; conductance of strong and weak electrolytes; The Onsager equation; Kohlrausch; law of independent migration of ions and its applications (comiuctometeric titrations); determination of dissociation constant of weak acid. Transference number. Reversible electrodes; electrode potentials; measurement of e.m.f. on concentration and activity; measurement of activity and activity coefficients; equilibrium constant and pH; solubility product from e.m.f. measurements. Concentration cells with and without liquid junction. Potentiometric titrations, amperometry, chronopotentiometry, coulometry; decomposition potentials and discharge of ions; overvoltage; polarography. Appropriate practical work.