Q.
The strong nucleophile and the best leaving group in the following reaction are respectively
$CH_{3}x+Nu^{-} \to CH_{3}-Nu+x^{-}$
Haloalkanes and Haloarenes
Solution:
The order of nucleophilicity is
Among the halide ions, the order in which the leaving groups depart is $ I^{-}>\, Br^{-}>\, Cl^{-}>\,F^{-}$
