Aqueous solution of which of the following compounds is the best conductor of electric current ?
Acetic acid, C2H4O2
Hydrochloric acid, HCl
Ammonia, NH3
Fructose, C6H12O6
In an Aqueous solution, HCl is the best conductor of electric current. Since HCl is a strong acid and hence it ionizes easily in an aqueous solution and provides free ions which are the carrier of electricity.
So, Option 2 is correct.