Question

The conjugate acid of $N{H}_2^{-}$ is

• A. $N_2{H}_4$
• B. $N{H}_4^{+}$
• C. $N{H}_{2}OH$
• D. $N{H}_3$

Answer 1

Answer: (D)

The species formed after adding a proton to the base is known as conjugate acid of the base and the species formed after losing a proton is known as conjugate base of acid. So,
$\underset{\text{ Base }}{N{H}_2^{-}}+H^{+}⟶\underset{\text{ Conjugate acid }}{N{H}_3}$