The conductivity of a strong electrolyte
- ADecreases on dilution
- BDoes not change with dilution
- CIncreases slightly on dilution
- DNone of the above
Show answer and explanation
Correct answer: (a) Decreases on dilution
Explanation
Conductivity (κ) depends on the number of ions per unit volume.
A strong electrolyte is already ~100% dissociated; on dilution the same ions spread into more solvent, so ions per unit volume fall.
Thus specific conductivity decreases on dilution, even though molar conductivity rises.