Which of the following species is an acid and also a conjugate base of another acid [NCERT 1981]

Which of the following species is an acid and also a conjugate base of

1.	Which of the following species is an acid and also a conjugate base of another acid [NCERT 1981]
A.	\[HSO_{4}^{-}\]
B.	\[{{H}_{2}}S{{O}_{4}}\]
C.	\[O{{H}^{-}}\]
D.	\[{{H}_{3}}{{O}^{+}}\]
Answer» B. \[{{H}_{2}}S{{O}_{4}}\]

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Which of the following species is an acid and also a conjugate base of another acid [NCERT 1981]

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