Ionic solids conduct electricity in molten state but not in solid state. Explain.

Explanation

In molten state, an ionic solid dissociates to form constituent ions (cations and anions). These free ions conduct electricity under the influence of an applied electric potential. In the solid state of an ionic solid, the constituent ions are held at fixed sites by the electrostatic forces of attraction in the crystal structure of the solid.
As a result, ions become unable to move and cannot conduct electricity under the influence of an applied electric potential.