Question

According to the protonic concept of acids and bases which one of the following is a substance classified as an acid?
(correct answer +1, wrong answer -0.25)

• A. $N{O}_3^{-}$
• B. $Cl{O}_4^{-}$
• C. $N{H}_4^{+}$
• D. $C{O}_3^{2-}$

Answer 1

The correct option is C $N{H}_4^{+}$

According to protonic concepts, acid is one that must be a proton donor. Among the give option, only $N{H}_4^{+}$ is capable of donating proton.