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Choose the halogen which is most reactive towards S N 1 reaction in the given compounds (A, B, C & D) A. Br (a) Br (b) B. I (a) I (b) C. Br (a) Me Br (b) D. Br (a) Br (b)

1. A – Br (b) ; B – I (a) ; C – Br (a) ; D – Br (a)
2. A – Br (b) ; B – I (b) ; C – Br (b) ; D – Br (b)
3. A – Br (a) ; B – I (a) ; C – Br (b) ; D – Br (a)
4. A – Br (a) ; B – I (a) ; C – Br (a) ; D – Br (a)

Correct answer: A – Br (a) ; B – I (a) ; C – Br (b) ; D – Br (a)

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