D-And F-Block Elements Ques 291

Question: Which ion is not coloured

[DPMT 2001]

Options:

A) $ C{{r}^{3+}} $

B) $ C{{o}^{2+}} $

C) $ C{{r}^{2+}} $

D) $ C{{u}^{+}} $

Show Answer

Answer:

Correct Answer: D

Solution:

$ C{{u}^{+}} $ do not have any unpaired electron.



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