Which of the following statements concerning Arrhenius acids and Arrhenius bases is incorrect?
(A) In the pure state, Arrhenius acids are covalent compounds.
(B) In the pure state, Arrhenius bases are ionic compounds.
(C) Dissociation is the process by which Arrhenius acids produce H+ ions in solution.
(D) Arrhenius bases are also called hydroxide bases.
