Equilibrium Question 67

Question: The species among the following, which can act as an acid and a base is [AIEEE 2002; KCET 2005]

Options:

A) $ HSO_4^{-} $

B) $ SO_4^{2-} $

C) $ H_3{O^{+}} $

D) $ C{l^{-}} $

Show Answer

Answer:

Correct Answer: A

Solution:

The species which can accept as well as donate $ {H^{+}} $ can act both as an acid and a base. $ \underset{base}{\mathop{HSO_4^{-}}},+{H^{+}} $ ⇌ $ H_2SO_4 $

$ \underset{acid}{\mathop{HSO_4^{-}}}, $ ⇌ $ SO_4^{2-}+{H^{+}} $



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