MCQ
The electrons which take part in order to exhibit variable oxidation states by transition metals are
- A$ns$ only
- B$(n - 1)\, d$ only
- ✓$ns$ and $(n -1)\, d$ only but not $np$
- D$(n -1)\, d$ and $np$ only but not $ns$
✓
Answer
Correct option: C.
$ns$ and $(n -1)\, d$ only but not $np$
c
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