Question

Solid nacl is a bad conductor of electricity because

Answer 1

The charged particles (ions) in solid NaCl are unable to move. As a result they can’t conduct electricity.

However, when NaCl is dissolved in water the Na+ and Cl- ions are capable to move, hence conduct electricity.

Answer 2

Solid $NaCl$ is a bad conductor of electricity.

Explanation:

• A substance must have charged particles, for example, electrons and particles, that are allowed to move openly through it to conduct electricity.
• In the solid-state, ionic compounds such as sodium chloride have their particles fixed in position and accordingly, these particles can't move.
• Due to the unavailability of free electrons, $NaCl$ cannot conduct electricity in molten state.
• Thus it can be inferred that solid $NaCl$ is a bad conductor of electricity because of the unavailability of mobile and free electrons.

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