Question

Which alkyl halide has maximum reactivity?

Answer 1

Alkyl halide

• In alkyl halides, the halogen atom is bonded to an alkyl group (R).
• The general formula for alkyl halide is ${\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}+1}\mathrm{X}$.

Reactivity of alkyl halide

• For a given alkyl group, the reactivity of the halide, R-X, follows the order as follows:-
• $\mathrm{R}–\mathrm{I}>\mathrm{R}–\mathrm{Br}>\mathrm{R}–\mathrm{Cl}>>\mathrm{R}–\mathrm{F}$
• As iodine is a better leaving group due to its larger size compared to other halogens.
• So, the reactivity of $\mathrm{R}-\mathrm{I}$ is maximum compared to other alkyl halides.