Question

The solid $NaCl$ is a bad conductor of electricity since

• A. In solid $NaCl$, there are no ions
• B. Solid $NaCl$ is covalent
• C. In solid $NaCl$, there is no mobility of ions
• D. In solid $NaCl$, there are no electrons

Answer 1

The correct option is C In solid $NaCl$, there is no mobility of ions

Solid NaCl is a bad conductor of electricity because in solid NaCl, there is no free ion as they are bound by strong electrostatic forces. However, in molten state the ions become free and conduct electricity.

So, answer is C.