non-dissociating+solutes

A solid such as sucrose (sugar) will dissolve readily in water. These molecules are very polar and will be removed from a sugar crystal by their attraction to the water molecules.





[|Here is an animation] depicting this dissolving event.

Because molecular solids (covalent compounds, mainly) do not separate into ions in solution (unlike NaCl), solutions of non-dissociating solids are not considered electrolytic. They cannot be detected using a conductivity meter.