The complex salt [Cr(H_2O)_4Br_2]Cl gives a t | vedclass

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(A) The given complex is $[Cr(H_2O)_4Br_2]Cl$. When dissolved in water,it ionizes as: $[Cr(H_2O)_4Br_2]Cl \rightarrow [Cr(H_2O)_4Br_2]^+ + Cl^-$. The

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$Cl^-$ ion

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(A) The given complex is $[Cr(H_2O)_4Br_2]Cl$. When dissolved in water,it ionizes as: $[Cr(H_2O)_4Br_2]Cl \rightarrow [Cr(H_2O)_4Br_2]^+ + Cl^-$. The $Cl^-$ ion is present in the ionization sphere (outside the coordination sphere),so it is free to react and can be detected by a test (e.g.,with $AgNO_3$). The $Br^-$ ions are inside the coordination sphere,bonded to the central metal atom,and do not ionize in the aqueous solution. Therefore,only the $Cl^-$ ion test is given.

The complex salt $[Cr(H_2O)_4Br_2]Cl$ gives a test for which of the following ions in its aqueous solution?

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