Question

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

• A. ${}^{-}OH$
• B. ${}^{-}OR$
• C. ${}^{-}O{C}_6{H}_5$
• D.

Answer 1

Answer: (B)

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