1.

A complex has a composition corresponding to the formula CoBr_(2)Cl.4NH_(3). What is the structural formula if conductance measurements show two ions per formula unit? Silver nitrate solution given an immediate precipitate of AgCl but no AgBr.

Answer»

`[CoBrCl(NH_(3))_(4)]Br`
`[CoCl(NH_(3))_(4)]Br_(2)`
`[CoBr_(2)Cl(NH_(3))_(4)]`
`[CoBr_(2)(NH_(3))_(4)]Cl`

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