Question

Ammonia gas dissolves in water to form $N{H}_{4}OH$ . In this reaction water acts as

• A. a conjugate base
• B. a non-polar solvent
• C. an acid
• D. a base

Answer 1

Answer: (D)

$H_{2}O+N{H}_3\rightleftharpoons N{H}_4^{+}+O{H}^{-}$
In this reaction $H_{2}O$ acts as acid because it donate a proton.