Question

Which of the following species can act as the strongest base?

• A. $O{H}^{-}$
• B. $O{R}^{-}$
• C.
• D.

Answer 1

Answer: (B)

Weakest acid has the strongest conjugate base. Since, R OH is the weakest acid, therefore $\text{R}{\text{O}}^{-}$ is the strongest base.