Melted sodium chloride is an electrolyte containing the cation Na+and the anion Cl-.
Solid sodium chloride is not an electrolyte; molten sodium chloride is dissociated and is an electrolyte.
You are a retard and should know that Gallium is a metal so it is conduts electicity! BELAC ^ Actually, not all metals conduct electricity. As you say; 'Retard'.
Naphthalene is a Ionic Substance. Hence, Ionic substance do not conduct when solid. But they do conduct when melted or dissolved in water - and they decompose at the same time. Therefor molten Naphthalene conduts electricity as the ions become free to move when dissolved in water.
Insulator.