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An acid HA ionizes as HAhArrH^(+)+A^(-) ...

An acid `HA` ionizes as `HAhArrH^(+)+A^(-)` The `pH` of `1.0 M` solution is `5`. Its dissociation constant would be

A

5

B

`5xx10^(-8)`

C

`1xx10^(-5)`

D

`1xx10^(-10)`

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The correct Answer is:
D
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