MCQ
The element the usually does $NOT$ show variable oxidation states is
- A$Cu$
- B$Ti$
- ✓$Sc$
- D$V$
✓
Answer
Correct option: C.
$Sc$
c
$Sc^{3+}$ has noble gas configuration hence only $+3$ exists.
$Sc^{3+}$ has noble gas configuration hence only $+3$ exists.
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