Question

Give reasons for the following:
An aqueous solution of sodium chloride conducts electricity.

Answer 1

Solid sodium chloride does not conduct electricity due to the absence of free ions but when it is dissolved in water it has free ions such as $H^{+}$, $O{H}^{-}$, $N{a}^{+}$ and $C{l}^{-}$ which are responsible for conduction of electricity.