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The d & f Block Elements — Chemistry STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceChemistryThe d & f Block Elements1 Mark
Question
Which one of the following paramagnetic in nature?
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Answer

In $CuCl_{2​}, Cu$ is in $+2$ oxidation state. Electronic configuration of $Cu^{2+}$ is $[Ar],3d^9,$ and is coloured and paramagnetic due to presence of an unpaired electron in the $3d$ sub$-$orbital.

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