The order of reactivity of alkyl halides towards halogenation

The order of reactivity of alkyl halides towards elimination reaction is

The order of reactivity of halogens towards halogenation of alkanes is

Decreasing order of reactivity of alkyl halide for dehydrohalogenation is :

Assertion: The order of reactivity of alkyl halides towards S_(N^1) reaction in tertiary halidegtsecondary halidegtprimary halide. Reason: The reaction follows carbocation mechanism.

Assertion: The order of reactivity of alkyl halides towards S_(N^1) reaction in tertiary halidegtsecondary halidegtprimary halide. Reason: The reaction follows carbocation mechanism.

The order of reactivity of alkyl halides depends upon:

The order of reactivity of various alkyl halides towards nucleophilic substitution follows the order