Question

1. Why are ionic solids poor conductors of electricity? The ions are neutral. O The lattice is brittle. O The ions are of equal but opposite charge. O The ions are in fixed positions.​

Answer 1

The last choice is the correct answer, the ions are held in fixed positions in the ionic lattice by strong electrostatic force of attraction. Hence, the oppositely charge ions are unable to move freely to act as delocalised charge carriers to conduct electricity.