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

Explanation

(i) In ionic compounds, electricity is conducted by ions.
(ii) In solid state, ions are held together by strong electrostatic forces and are not free to move about within the solid.
(iii) Hence, ionic solids do not conduct electricity in solid state.
(iv) However, in molten state or in solution form, the ions are free to move and can conduct electricity.