JEE Main 2023 — Haloalkanes And Haloarenes Question with Solution

Organic compounds are more reactive towards SN 1 , if the carbocation is stable compared to others. Reactivity in reactions depends upon the stability of the carbocation intermediate.


$\mathrm{Br}(\mathrm{a})$, Becuase formed intermediate carbocation get stable by conjugation with phenyl ring


$\mathrm{I}(\mathrm{a})$, Becuase formed intermediate carbocation become more stable by conjugation


$\mathrm{Br}(\mathrm{b})$, Becuase we can't remove $Br(a)$ from bridge head carbon (Bredt's rule)


$\mathrm{Br}(\mathrm{a})$, because formed intermediate $3^{\circ }$ carbocation is more stable (stability of carbocation $3^{\circ }>2^{\circ }$ $>1^{\circ })$