Question

Which of the following cannot act both as Bronsted acid and as Bronsted base ?

• A. HCO${}_3^{-}$
• B. NH${}_3$
• C. HCl
• D. HSO${}_4^{-}$

Answer 1

Answer: (C)

$HCl$ cannot act both as Bronsted acid and Bronsted base because $HCl$ can only donate proton.