MCQ
In which compound, the oxidation state of phosphorus is $+4$
- A${P_4}{O_{11}}$
- ✓${P_4}{O_8}$
- C$PC{l_5}$
- D$NC{l_5}$
$4 x+(-2 \times 8)=0$
$4 x-16=0$
$x=\frac{16}{4}=+4$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

$H_3PO_3 \to H_3PO_4 + PH_3$