Using the K_eq values, identify the reaction that has the best leaving group.

For which of these reactions would the rate of formation of the carbocation be higher?

Which of the following compounds makes a better leaving group when both are reacted in DMSO?

Arrange the following in order of their decreasing leaving group ability.

Choose the better leaving group between F^- and Cl^- in a polar aprotic solvent.

Choose the constituent of each pair that is the better leaving group.

i. CH₃O^- or CH₃OH

ii. CH₃NH₂ or CH₃OH

For the following substitution reactions, determine which would react faster.

 (CH₃)₂CHCH₂Cl + I⁻  or  (CH₃)₂CHCH₂Br + I⁻