Question

Nature of nitride ion is:

• A. acidic
• B. basic
• C. amphiprotic
• D. cannot predict

Answer 1

Answer: (B)

basic

$N^{3-}\left(aq\right)+3H_{2}O\left(l\right)\to N{H}_3\left(g\right)+3O{H}^{-}\left(aq\right)$

$N^{3-}$ accept protons, hence, it is strong Bronsted Lowry base and reacts with water to produce $N{H}_3$ and $O{H}^{-}$ ions.