MCQ
The oxidation number of $C$ in $C{O_2}$ is
- A$-2$
- B$2$
- C$-4$
- ✓$4$
✓
Answer
Correct option: D.
$4$
(d) $\mathop {C{O_2}}\limits^{ * \,\,\,\,\,\,} $
$x + 2\,( - 2) = 0$; $x - 4 = 0$; $x = + 4$.
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