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If concentration of two weak bases are s...

If concentration of two weak bases are same and D.O.D `(alpha)` are very less their ralative strength can be compared by :

A

`([OH^(-)]_(1))/([OH^(-)]_(2))`

B

`(Kb_(1))/(Kb_(2))`

C

`(alpha1)/(alpha2)`

D

`(sqrt(Kb_(1)))/(sqrt(Kb_(2)))`

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