NEET UG CHEMISTRY MCQ: d & f- BLOCK ELEMENTS

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A magnetic moment of 1.73 BM will be shown by one among the following compounds:

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Correct option: A

{\left[ {\mathrm{Cu}{{\left( {\mathrm{N}{\mathrm{H}_3}} \right)}_4}} \right]^{2 + }}

The correct answer is

{\left[ {\mathrm{Cu}{{\left( {\mathrm{N}{\mathrm{H}_3}} \right)}_4}} \right]^{2 + }}

because

Cu^{2+}

has a

d^9

configuration with one unpaired electron, resulting in a magnetic moment close to 1.73 BM.

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