For an experiment, a student needs a compound that has the following properties.• It dissolves in water.• It is an electrolyte.• It is excellent conductor of electricity.Which substance would be the best choice for the experiment?

Potassium chloride dissolves in water and separates into potassium and chloride ions. These mobile ions make the solution a strong electrolyte and an excellent conductor of electricity. Methanol does not form ions, acetic acid is only a weak electrolyte, and distilled water conducts very poorly.

AI-written and checked against the verified answer.