The complex ion [Cu(NH_3)_4]^{2+} is: | vedclass

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(C) In the complex $[Cu(NH_3)_4]^{2+}$,the central metal ion is $Cu^{2+}$.The electronic configuration of $Cu^{2+}$ is $[Ar] 3d^9$.Due to the presence

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Square planar and paramagnetic

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(C) In the complex $[Cu(NH_3)_4]^{2+}$,the central metal ion is $Cu^{2+}$.The electronic configuration of $Cu^{2+}$ is $[Ar] 3d^9$.Due to the presence of $NH_3$ (a strong field ligand),the unpaired electron in the $3d$ orbital is promoted to the $4p$ orbital.This results in $dsp^2$ hybridization,which corresponds to a square planar geometry.Since there is one unpaired electron in the $4p$ orbital,the complex is paramagnetic.

The complex ion $[Cu(NH_3)_4]^{2+}$ is:

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