A) \[ClO_{3}^{-}\]
B) \[ClO_{2}^{-}\]
C) \[ClO_{4}^{-}\]
D) \[Cl{{O}^{-}}\]
Correct Answer: D
Solution :
Strongest Bronsted base is that which has weakest conjugate acid. Base Conjugate acid\[\mathbf{(base+}{{\mathbf{H}}^{\mathbf{+}}}\mathbf{)}\] \[Cl{{O}^{-}}\] \[HClO\] \[ClO_{2}^{-}\] \[HCl{{O}_{2}}\] \[ClO_{3}^{-}\] \[HCl{{O}_{3}}\] \[ClO_{4}^{-}\] \[HCl{{O}_{4}}\] \[\because \]\[HClO\] is weak conjugate acid. \[\therefore \]\[Cl{{O}^{-}}\]is strongest Bronsted base.
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