MCQ
Oxidation number of $P$ in $M{g_2}{P_2}{O_7}$ is
- A$+3$
- B$+2$
- ✓$+5$
- D$-3$
✓
Answer
Correct option: C.
$+5$
(c) $\mathop {M{g_2}{P_2}{O_7}}\limits^{\,\,\, * } $
$4 + 2x - 2 \times 7 = 0$;$2x = 14 - 4 = 10$
$2x = 10$; $x = \frac{{10}}{2} = + \,5$.
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