COMEDK2024ChemistryElectrochemistryActual
Identify the incorrect statement among the following.
Options
- AElectrolytic conductance increases with increase in temperature
- BConductivity does not depend on the viscosity of the solution
- CConductivity depends on the size of the ions
- DConductivity depends on the solvation of the ions
Correct answer
B. Conductivity does not depend on the viscosity of the solution
Step-by-step solution
(1) Correct: With increase in temperature, kinetic energy of ions increases and viscosity of solvent decreases ions move faster conductance increases. (3) Correct: Larger ions move more slowly lower mobility lower conductivity. (4) Correct: Greater solvation larger effective ionic radius lower mobility lower conductivity. (2) Incorrect: Ion mobility is inversely proportional to viscosity of the solution. Higher viscosity greater resistance to ion movement lower conductivity. So conductivity does depend on viscosity