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The addition of Br(2) to NaI turns the s...

The addition of `Br_(2)` to `NaI` turns the solution violet.

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T
In this case, redox reaction occurs and `I^(c-)` ions reduce `Br_(2)` to `Br^(c-)` ions and themselves are oxidized to `I_(2)` to give violet colour.
`Br_(2)+2I^(c-) rarr 2Br^(c-)+I_(2)(` violet `)`
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