* Urea (NH₂CONH₂) is a covalent compound. Covalent compounds do not form ions in solution.
* Ions are necessary for electrical conductivity. Electricity is conducted through the movement of charged particles (ions).
* Urea does not ionize in water. When urea dissolves in water, it remains as intact urea molecules, not charged ions.
In contrast, substances like salts (NaCl) or acids (HCl) do ionize in water, forming ions that allow for electrical conduction.
