Q. The species among the following which can act as an acid and a base is:
A) $HSO_{4}^{-}$
B) $SO_{4}^{2 -}$
C) $H_{3}O^{+}$
D) $Cl^{-}$
Explanation
(a)
The species which can accept as well as donate $H^{+}$ can act both as an acid and a base
$HSO_{4}^{-} + H^{+} \rightleftharpoons H_{2}{SO}_{4}$
base
$HSO_{4}^{-} \rightleftharpoons {SO}_{4}^{2 -} + H^{+}$
acid
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.