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Which of the following expression for % ...

Which of the following expression for `%` dissociation of a monoacidic base (BOH) in aqueous solution at appreciable concentration is not correct?

A

`100xxsqrt((K_(b))/(c))`

B

`(1)/(1+10^((pK_(b)-pOH))`

C

`(K_(w)[H^(+)])/(K_(b)+K_(w))`

D

`(K_(b))/(K_(b)+[OH^(-)])`

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