Ncert Exercises & Solutions

The incorrect statement about the solution of electrolytes is:

1.	Conductivity of solution depends upon the size of ions.
2.	Conductivity depends upon the viscosity of solution.
3.	Conductivity does not depend upon the solvation of ions present in solution.
4.	Conductivity of solution increases with temperature.

HINT: Conductivity of electrolytic solution depends on solvation of ions.

Explanation:

The solution consists of electrolytes is known as an electrolytic solution and the conductivity of electrolytic solution depends upon the following factors :

(i) Size of ions As ion size increases, ion mobility decreases and conductivity decreases.

(i) Viscosity of solution Greater the viscosity of the solvent lesser will be the conductivity of the solution.

(iii) Solvation of ions Greater the solvation of ions of an electrolyte lesser will be the electrical conductivity of the solution.

(iv) Temperature of medium Conductivity of solution increases with increase in temperature.

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