See image — Haloalkanes and Haloarenes Chemistry Question

💡 Solution & Explanation

Correct answer: \(\text{B}\). For substitution, \(\mathrm{S_N1}\) follows carbocation stability and may rearrange/racemise; \(\mathrm{S_N2}\) requires backside attack and gives inversion. Recovered question text: 19. Which of the following compounds is most reactive towards nucleophilic substitution reaction by SN1 mechanism? CH3 CH3 (a) CH2Br (b) CH3 CH2Br CH3 CH3 CH3 (c) CH3CH2 CH2 (d) CH3CH CH2Br Br 