MCQ
In ammonium-phosphomolybdate, the oxidation state of Mo is ${ }^{+}$ $..........$.
- A$8$
- B$4$
- C$10$
- D$6$
✓
Answer
$\left( NH _4\right)_3 PO _4 \cdot 12 MoO _3$
Let $X =$ oxidation state of $Mo$ in $MoO _3$
$X +(-2) \times 3=0$
$X =+6$
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