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Which of the following are conjugate aci...

Which of the following are conjugate acid-base pairs ?

A

`HCO_(3)^(-)CO_(3)^(2-)`

B

`C_(6)H_(5)overset(+)NH_(3),C_(6)H_(5)NH_(2)`

C

`H_(2)PO_(2)^(-),H_(2)PO_(3)^(-),HC_(2)O_(4)^(-)`

D

`OH^(-),H^(+)`

Text Solution

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The correct Answer is:
A,B
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