1. In this case, neither the cations nor the anions undergo hydrolysis. Therefore the solution remains neutral.
2. For example, in the aqueous solution of NaCl, its ions Na+ and Cl- ions have no tendency to react with H+ or OH- ions of water.
This is because the possible products of such reaction are NaOH and HCI which are completely dissociated. As a result, there is no change in the concentration of W and OH- ions and hence the solution continues to remain neutral.