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^{+}} $ .



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