MCQ
Which of the following ions is coloured
- A$C{u^ + }$
- ✓$C{u^{2 + }}$
- C$T{i^{4 + }}$
- D${V^{5 + }}$
✓
Answer
Correct option: B.
$C{u^{2 + }}$
b
(b)$C{u^{2 + }}\, \to \,3{d^9}4{s^0}$
(b)$C{u^{2 + }}\, \to \,3{d^9}4{s^0}$
$1$ unpaired ${e^ - }$.
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