Question

The degree of dissociation of an electrolyte increases by:

• A. increasing the concentration of the solution
• B. presence of a common ion
• C. using solvent of a low dielectric constant
• D. using solvent of a high dielectric constant

Answer 1

The correct option is D using solvent of a high dielectric constant

The dielectric constant of a solvent is the capacity to weaken the force of attraction between the dielectric charges immersed in that solvent. If a solvent has strong di-electric constant i.e. it has a high capacity to weaken the force of attraction between the di-electrical charges immersed in the solvent, therefore it helps in the dissociation of the molecule into its constituent ions and increases the degree of dissociation.