Identify the factor from the following that does not affect electrolytic conductance of a solution.

Identify the factor that does NOT affect electrolytic conductance of a solution.

Understand what electrolytic conductance depends on.

The electrolytic conductance (conductivity) of a solution depends on the following factors:

(i) Nature of the electrolyte: Strong electrolytes (like NaCl, HCl) dissociate completely and have higher conductance than weak electrolytes (like acetic acid).

(ii) Concentration of the electrolyte: Conductance changes with concentration due to changes in the number of ions available and their mobility.

(iii) Nature of the solvent: The dielectric constant and viscosity of the solvent affect the degree of dissociation and ion mobility.

(iv) Temperature: Higher temperature increases ionic mobility and degree of dissociation.

Identify what does NOT affect conductance.

The nature of the electrode (whether it is platinum, copper, graphite, etc.) does not affect the conductance of the solution itself. Electrodes serve as the interface for charge transfer but do not change the ionic conductivity of the bulk solution. The conductance is a property of the electrolyte solution, not of the electrodes.

(Note: Electrode material may affect measured cell constant or resistance at the electrode-solution interface, but not the intrinsic electrolytic conductance.)

The correct answer is Option (2): The nature of the electrode used.