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The following equilibria is established ...

The following equilibria is established when `H_(2)SO_(4)` is dissolved in acetic acid:
`H_(2)SO_(4) + CH_(3)COOH hArr Hoverset(Theta)SO_(4) + CH_(3)COOoverset(o+)H_(2)`
The set that characterised the conjugate acid-base pairs is:

A

`(H_(2)SO_(4),CH_(3)COOH)` and `(CH_(3)COOoverset(o+)H_(2),Hsoverset(Theta)O_(4))`

B

`(H_(2)SO_(4),CH_(3)COOoverset(o+)H_(2))` and `(CH_(3)COOH,H_(2)SO_(4))`

C

`(CH_(3)COOoverset(o+)H_(2),H_(2)SO_(4))` and `(Hsoverset(Theta)O_(4),CH_(3)COOH)`

D

`(H_(2)SO_(4),Hsoverset(Theta)O_(4))` and `(CH_(3)COOoverset(o+)H_(2),CH_(3)COOH)`

Text Solution

Verified by Experts

The correct Answer is:
C
`[H^(o+)] = (10^(-3))/(1000) = 16^(-6) rArr pH = 6`

Conjugate acid are `= (CH_(3)COOoverset(o+)H_(2), H_(2)SO_(4))`
Conjugate base are `:. (HSO_(4)^(Theta), CH_(3)COOH)`
Hence answer is (c).
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