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An aqueous solution of a complex compoun...

An aqueous solution of a complex compound of formula `Co(NH_(3))_(5)Br(SO_(4))` reacts readily with aqueous `AgNO_(3)` to give a yellowish white precipitate. Write down the structural formula of the complex and mention the reaction involved.

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Yellowish white precipitate formed in the reaction is of silver bromide `(AgBr)`. Formation of `AgBr` suggests that in the complex compound bromine atom remains as bromide ion `(Br^(-))` outside the coordination sphere.
So, the structural formula of the complex ion ion is `[Co(NH_(3))_(5)(SO_(4))]^(+)Br^(-)`
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