The addition of $Cl$ and $I$ radicals to alkanes in an anti-Markovnikov fashion is an endothermic reaction and therefore counterproductive.
Without the presence of peroxide, all hydrogen halides will add according to the Markovnikov rule.


$A \xrightarrow[ { Cu\; tube }]{\text { Redhot }}\mathrm{B} \xrightarrow[ Anhydrous AlCl_3]{\mathrm{CH}_{3} \mathrm{Cl}(1 \mathrm{eq}} \mathrm{C}$
($A$ એ સૌથી ઓછું પરમાણ્વીય વજન ધરાવતું આલ્કાઇન છે)
