Which ion is not coloured - Vidyadip

MCQ

Which ion is not coloured

A
$C{r^{3 + }}$
B
$C{o^{2 + }}$
C
$C{r^{2 + }}$
✓
$C{u^ + }$

✓

Answer

Correct option: D.

$C{u^ + }$

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

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