Question

Is $N{H}_3$ a base? Why or why not?

• A. Yes, $N{H}_3$ can release $O{H}^{-}$ ions and hence is a base.
• B. No, $N{H}_3$ has three hydrogen atoms and hence is an acid.
• C. No, a base should ionize in water to form $O{H}^{-}$ ions.
• D. Yes, $N{H}_3$ can accept a proton.

Answer 1

The correct option is D Yes, $N{H}_3$ can accept a proton.

Yes.
Even though $N{H}_3$ cannot release $O{H}^{-}$ ions, it can accept protons. According to Bronsted-Lowry theory, acids donate protons and bases accept protons. Hence, $N{H}_3$ is a base.