Answer:
\[C{{H}_{3}}F<C{{H}_{3}}Cl<C{{H}_{3}}Br<C{{H}_{3}}I\]
In these nucleophilic substitution
reactions, the nucleophile is to displace the halide ion \[({{X}^{-}})\].
Greater the bond dissociation enthalpy of the C-X bond, difficult is its
cleavage and lesser will be the reactivity. The order of bond dissociation
enthalpy of different C-X bonds is:
\[C-F>C-Cl>C-Br>C-I\]
The order of reactivity towards \[{{S}_{{{N}^{2}}}}\]
reactions is the reverse.
You need to login to perform this action.
You will be redirected in
3 sec