In [Co(NH₃)₅Br]SO₄, what is the role of SO₄²⁻? - COORDINATION COMPOUNDS Quiz | GKFix.in

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Question

In [Co(NH₃)₅Br]SO₄, what is the role of SO₄²⁻?

A. Ligand
B. Counter ion
C. Hydrate molecule
D. Chelating agent