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QJEEM23Chd788: JEE Main 2023 Chemistry - Class 12 JEEM23Chd788 Solution: Choose the halogen which is most reactive towards S N 1…
Choose the halogen which is most reactive towards

Multiple Choice Options
- A A−Br(b);B−I(a);C−Br(a);D−Br(a)
- B A−Br(a);B−I(a);C−Br(a);D−Br(a)
- C A−Br(b);B−I(b);C−Br(b);D−Br(b)
- D A−Br(a);B−I(a);C−Br(b);D−Br(a)
Step-by-Step Verified 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.

, Becuase formed intermediate carbocation get stable by conjugation with phenyl ring

, Becuase formed intermediate carbocation become more stable by conjugation

, Becuase we can't remove from bridge head carbon (Bredt's rule)

, because formed intermediate carbocation is more stable (stability of carbocation 3^{\circ}>2^{\circ} \left.>1^{\circ}\right)

, Becuase formed intermediate carbocation get stable by conjugation with phenyl ring

, Becuase formed intermediate carbocation become more stable by conjugation

, Becuase we can't remove from bridge head carbon (Bredt's rule)

, because formed intermediate carbocation is more stable (stability of carbocation 3^{\circ}>2^{\circ} \left.>1^{\circ}\right)