MCQ
Oxidation state of $+ 1$ for phosphorus is found in
- A${H_3}P{O_3}$
- B${H_3}P{O_4}$
- ✓${H_3}P{O_2}$
- D${H_4}{P_2}{O_7}$
$3+x+(-2 \times 2)=0$
$x=+1$
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