When excess of ammonia is added to copper sul | vedclass

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(D) When excess $NH_3$ is added to $CuSO_4$ solution,the complex formed is $[Cu(NH_3)_4]^{2+}$.In this complex,the oxidation state of $Cu$ is $+2$,whi

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square planar and paramagnetic

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(D) When excess $NH_3$ is added to $CuSO_4$ solution,the complex formed is $[Cu(NH_3)_4]^{2+}$.In this complex,the oxidation state of $Cu$ is $+2$,which corresponds to the electronic configuration $[Ar] 3d^9$.Due to the presence of one unpaired electron in the $3d$ orbital,the complex is paramagnetic.Although the geometry is often described as distorted octahedral in aqueous solution,in the context of coordination chemistry theory regarding this specific complex,it is frequently categorized as square planar or distorted square planar with $dsp^2$ hybridization character,exhibiting paramagnetism due to the unpaired electron.

When excess of ammonia is added to copper sulphate solution,the deep blue coloured complex is formed. The complex is

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