fatmaz00
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Does benzene decolourise bromine water?
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TSR Jessica
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Sorry you've not had any responses about this. Are you sure you've posted in the right place? Here's a link to our subject forum which should help get you more responses if you post there.
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buci98
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nope. It cant react with Bromine unless you add FeBr3 catalyst. Also, that is a substitution reaction and not an addition
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BTAnonymous
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good question. probably not because it does not have double bonds and is very stable so doesn't react as readily as alkenes.
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Lord Nutter
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It is possible for benzene to decolourise bromine water but this requires a halogen carrier called aluminium bromide AlBr3 (FeBr3 will also work) to form the Br+ ion (The halogen carrier will be AlBr4-) that will undergo a electrophilic substitution reaction with benzene. The products will be 1 bromobenzene (Depending on how many moles of benzene you have used) and a H+ ion. This H+ ion will react with the halogen carrier AlBr4- to give AlBr3 again and HBr. As AlBr3 is regenerated the halogen carrier is a catalyst to this reaction.

The reaction would work better if you have used phenol instead of benzene due to overlapping p orbitals (Or any non-bonding electrons) on the oxygen atom and the delocalised ring of electrons in the ring of phenol - this makes phenol much more reactive and will react with bromine water in a similar way but this time, without the need of a halogen carrier

hope this answered your question
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HateOCR
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#6
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No.
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