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Explain the mechanism of addition of hydrogen bromide to propene. |
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Answer» SOLUTION :The mechanism of addition of hydrogen bromide to propene takes place in three step. Step 1: Hydrogen bromide dissociates into `H^(+)` and `Br^(-)` `H- Br rarr H^(+) + Br^(-)` Step 2:the electrophile `H^(+)` attacks propene to form CARBOCATION.  of the two carbocations (I) and (II), carbocations (I) is more stable and is FORMED more READILY. Step 3: The nucleophile Br attacks the carbocation (I) to GIVE 2 - Bromopropane. `CH_(3) - overset(+)(CH) - CH_(3) + overset(-)(Br) rarr CH_(3) - underset(Br)underset(|)(CH) - CH_(3)` |
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