Alcohols Phenols And Ethers Question 259

Question: In the following groups $ \begin{matrix} -OAc \\ I \\ \end{matrix} $ $ \begin{matrix} -OMe \\ II \\ \end{matrix} $ $ \begin{matrix} -OSO_2Me \\ III \\ \end{matrix} $ $ \begin{matrix} -OSO_2CF_3 \\ IV \\ \end{matrix} $ The order of leaving group ability is

[IIT 1997]

Options:

A) I > II > III > IV

B) IV > III > I > II

C) III > II > I > IV

D) II > III > IV > I

Show Answer

Answer:

Correct Answer: B

Solution:

IV > III > I > II.