In the reaction HNO₃ + NH₃ NH₄⁺ + NO₃^-, NH₄⁺ and NH₃ are a conjugate acid-base pair.

Question

Quizplus · Accepted Answer

A conjugate acid-base pair is a pair of substances that differ by a proton (H+) and a corresponding change in their charge. In this reaction, NH₄⁺ acts as an acid and donates a proton to HNO₃, which acts as a base. This forms the conjugate acid NH₃ and the conjugate base NH₄⁺. Therefore, option A is correct.

In the Reaction HNO3 + NH3 NH4+ + NO3-

In the Reaction HNO₃ + NH₃ NH₄⁺ + NO₃^-