Final answer:
CoSO4 is neither an acid nor a base; it is a salt that dissociates into ions, making it a strong electrolyte.
Step-by-step explanation:
CoSO4 is none of the options provided: it is not an acid or a base, but rather a salt. When CoSO4 dissolves in water, it does not release H+ ions that would classify it as an acid nor does it produce OH- ions that would classify it as a base. Instead, it dissociates into Co2+ and SO42- ions, making it a strong electrolyte.
Strong acids like H2SO4 dissociate almost completely in water to give H+ ions, while strong bases such as NaOH release OH- ions in solution. CoSO4, as a salt, is not capable of either of these actions, so it does not fall into the acid or base categories.