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The following equilibrium is established when \mathrm{HClO_{4}}  is dissolved in weak acid \mathrm{HF}.

\mathrm{HF+HClO_{4}\rightleftharpoons ClO_{4}^{-}+H_{2}F^{+}}

Which of the following is correct set of conjugate acid base pair ?


Option: 1

\mathrm{HF\: and\: HClO_{4}}

Option: 2

\mathrm{HF\: and\: ClO_{4}^{-}}

Option: 3

\mathrm{HF\: and\: H_{2}F^{+}}


Option: 4

\mathrm{HClO_{4}\: and\: H_{2}F^{+}}

Answers (1)


Conjugate acid-base pair -

The acid-base pair that differ only by one proton is called a conjugate acid-base pair.

\mathrm{HCl+H_{2}O\rightleftharpoons H_{3}O^{+}+Cl^{-}}

Cl- is the conjugate base of  HCl  &  H3O+  is the conjugate acid of  H2O.


In the given case,


(Acid)            (base)

Posted by

Suraj Bhandari

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