Rank the following ions in order of increasing nucleophlicity in polar protic solvents, starting with the least nucleophilic ion. $$\begin{array} { c c c c }
\mathrm { F } ^ { * } & \mathrm { Cl } ^ { - } & \mathrm { Br } ^ { - } & \mathrm { I } ^ { - } \
\text {I } & \text { II } & \text { III } & \text { IV }
\end{array}$$

Question

Rank the following ions in order of increasing nucleophlicity in polar protic solvents, starting with the least nucleophilic ion. $$\begin{array} { c c c c } 
\mathrm { F } ^ { * } & \mathrm { Cl } ^ { - } & \mathrm { Br } ^ { - } & \mathrm { I } ^ { - } \
\text {I } & \text { II } & \text { III } & \text { IV }
\end{array}$$

Quizplus · Accepted Answer

In polar protic solvents, nucleophilicity increases down the group in the periodic table due to the increasing size and polarizability of the ions. Therefore, the order is F⁻ < Cl⁻ < Br⁻ < I⁻.

Rank the Following Ions in Order of Increasing Nucleophlicity in Polar