State: (a) Kohlrausch law of independent migration of ions. (b) Faraday's first law of electrolysis.

a) Limiting molar conductivity of an electrolyte can be represented as the sum of the individual contributions of the anion and cation of the electrolyte / \[\mathbf{\Lambda}_{m}^{\circ}=v_{+} \lambda_{+}^{\circ}+v_{-} \lambda_{-}^{\circ} \text { Here, } \lambda^{\circ}+\text { and } \lambda^{\circ}-\text { are the limiting molar conductivities of the cation } \] and anion respectively.

b) The amount of chemical reaction which occurs at any electrode during electrolysis by a current is proportional to the quantity of electricity passed through the electrolyte. / m=ZIt where m= mass of the substance deposited , Z= electrochemical equivalent, I= current, t= time.