A) \[Cu\,(I)\]
B) \[Cr\,(III)\]
C) \[Co(II)\]
D) \[Cu(II)\]
Correct Answer: A
Solution :
Ion which has unpaired electron would be coloured. This is the reason \[C{{u}^{+}}=3{{d}^{10}}\]= colourlessYou need to login to perform this action.
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