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Br(2)+underset(HOT)OH^(o+)rarr(A)+(B) ...

`Br_(2)+underset(HOT)OH^(o+)rarr(A)+(B)`
`(A)+(B)+H^(o+)rarr Br_(2)`
(A) gives yellow precipitate with `AgNO_(3)`. (A) and (B) are

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`Br_2+OH^(-)("hot") to Br^(-)+BrO_3^-`
`Br^(-)+BrO_(3)^(-) overset ("distillation")to Br_2`
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