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    So pretty simple question. Why the product in A does not form but the product in B does?
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    (Original post by Some one)
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    So pretty simple question. Why the product in A does not form but the product in B does?
    A cannot be the product because bromine is a stronger electrophile than chlorine, so bromine will have to attack the double bond first, resulting in the formation of a carbocation next to the carbon where the first bromine was attached. And then, chlorine or bromine can get attached to the carbocation formed. So B and C are the only possible answers.
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    (Original post by maria.x)
    A cannot be the product because bromine is a stronger electrophile than chlorine, so bromine will have to attack the double bond first, resulting in the formation of a carbocation next to the carbon where the first bromine was attached. And then, chlorine or bromine can get attached to the carbocation formed. So B and C are the only possible answers.
    So on what basis do we rank electrophiles? What factors decide which ion/molecule is a better electrophile?
    And thanks a lot for your reply !
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    (Original post by Some one)
    So on what basis do we rank electrophiles? What factors decide which ion/molecule is a better electrophile?
    And thanks a lot for your reply !
    In my notes, only group 7 is mentioned. Electrophile strength increases down group 7.
 
 
 
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