One of the following compound's solution will not conduct electricity. The compound is :

Carbon tetrachloride is not ionic in nature.
Ionic compounds are those compounds that are formed by the complete transfer of electrons from one element to another element and when dissolved in water, they break into their constituent ions.

A compound conducts electricity when it dissolves in water or in its molten state because, in the molten or dissolved state, it breaks into its constituent ions.

Lithium chloride, ammonium chloride & calcium chloride are ionic compounds when dissolved in water they break into their constituent ions whereas carbon tetrachloride is a non-ionic compound and does not break as constituent ions.