Read the passage below and answer the following questions:
Oxidation-reduction reactions are commonly known as redox reactions. They involve transfer of electrons from one species to another. In a spontaneous reaction, energy is released which can be used to do useful work. The reaction is split into two half reactions. Two different containers are used, and a wire is used to drive the electrons from one side to the other and a Voltaic/Galvanic cell is created. It is an electrochemical cell that uses spontaneous redox reactions to generate electricity. A salt bridge also connects to the two half cells. The reading of the voltmeter gives the cell voltage or cell potential or electromotive force. If ${\mathrm{E}}_{\mathrm{cell}}^{°}$  is positive for the reaction, it is a spontaneous redox reaction and if it is negative, the reaction is non-spontaneous and is referred to as electrolyte cell. Electrolysis refers to the decomposition of a substance by an electric current. One mole of electric charge when passed through a cell will discharge half a mole of divalent metal ion such as Cu⁺². This was first formulated by Faraday in the form of law of electrolysis. The conductance of the material is the property of materials due to which a material allows the follow of ions through itself and thus conducts electricity. Conductivity is represented as   and it depends upon the nature and concentration of electrolyte, temperature etc. a more common term molar conductivity of a solution is given at a given concentration is conductance of the volume of solution, containing one mole of electrolyte kept between two electrodes with the unit area of cross-section and distance of unit length. Limiting molar conductivity of weak electrolytes cannot be obtained graphically.

(a) Is silver plate cathode or anode ?
(b) What will happen if the salt bridge is removed ?
(c) Why does the electrochemical cell behaves like an electrolytic cell ?
(d) (i) What will happen to the concentration of Zn⁺² and Ag⁺ when E_cell = 0.
(ii) Why does the conductivity of solution decreases with dilution?

OR

(d) The molar conductivity of a 1.5M solution of an electrolyte is found to be 138.9 S cm²mol^-1. Calculate the conductivity of the solution.