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Question

Identify the correct statement(s) about [Cu(NH3)4]2+:

A
The complex is tetrahedral
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B
The complex is square planar
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C
Cu2+ in the complex is dsp2 hybridized
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D
Cu2+ in the complex is sp2 hybridized
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Solution

The correct option is C Cu2+ in the complex is dsp2 hybridized
Since NH3 is a neutral ligand, we can say that Cu has a +2 oxidation state in [Cu(NH3)4]2+. This means that it has d8 electronic configuration.
Most d8 configuration central atoms have the tendency to form square planar complexes. In such a case, the expected hybridization is dsp2.

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