in an aprotic solvent , which relative ordering best describes the nucleophilicity of the halide ions ?
a) iodide bromide chloride fluoride
b)iodide bromide chloride fluoride
c) iodide
d ) iodide chloride fluoride
why ?
The correct answer is ,
Iodide> Bromide > Chloride >> Fluoride.
It is because, larger the size, greater will be the leaving tendency of group and so easy would be the nucleophilic reactions.
hence, the halide with larger size are more reactive and so more nucleophilic.