A) \[{{V}^{5\,+}}\]
B) \[{{\operatorname{Cu}}^{2\,+}}\]
C) \[{{\operatorname{Cu}}^{+}}\]
D) \[T{{i}^{\,++}}\]
Correct Answer: B
Solution :
Electronic configuration of \[{{\operatorname{Cu}}^{2}}^{+}=\, \left[ Ar \right] 4{{d}^{9}}\,5{{s}^{0}}\]. Due to presence of unpaired electrons, it is coloured.You need to login to perform this action.
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