Which of the complexes has the magnetic moment of 3.87 BM ?

Which of the complexes has the magnetic moment of 3.87 BM ?
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Which of the complexes has the magnetic moment of 3.87 BM ? A. `[Co(NH_(3))_(6)]^(3+)` ... (dmg)_(2)]` square planar complex (dmg= dimethyl glyoxime )
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