What conditions must be met in order for an aqueous solution to be called "neutral"?

the concentrations of hydronium and hydroxide ions are equal.
the hydroxide ion concentration is greater than the hydronium ion concentration.
there are no hydronium or hydroxide ions present in the solution.
the hydronium ion concentration is greater than the hydroxide ion concentration.
none of the above.

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.