Equilibrium Question 88
Question: Which of the following species is an acid and also a conjugate base of another acid [NCERT 1981]
Options:
A) $ HSO_4^{-} $
B) $ H_2SO_4 $
C) $ O{H^{-}} $
D) $ H_3{O^{+}} $
Show Answer
Answer:
Correct Answer: A
Solution:
$ H_2SO_4 $ ⇌ $ {H^{+}}+HSO_4^{-} $ ⇌ $ {H^{+}}+SO_4^{-,-} $
$ HSO_4^{-} $ is conjugate base. But it is also an acid because it lose $ {H^{+}} $ .
