Question

The conjugate acid of $N{H}_3$ ion is:

• A. $N{H}_{2}OH$
• B. $N{H}_4^{+}$
• C. $N{H}_3$
• D. $N{H}_2^{+}$

Answer 1

Answer: (B)

The conjugate acid of $N{H}_3$ is $N{H}_4^{+}$ ion:
$\underset{\text{Acid}}{N{H}_4^{+}}+\underset{\text{Base}}{H_{2}O}\rightleftharpoons \underset{\text{Base}}{N{H}_3}+\underset{\text{Acid}}{H_3{O}^{+}}$