Question

In the disproportionation reaction:
$H_{3}P{O}_2\to P{H}_3+H_{3}P{O}_3$
The equivalent mass of $H_{3}P{O}_2$ is (m = molecular mass of $H_{3}P{O}_2)$

• A. $\frac{3m}{4}$
• B. $\frac{3m}{5}$
• C. $\frac{5m}{6}$
• D. $\frac{3m}{2}$

Answer 1

The correct option is A $\frac{3m}{4}$

The equivalent weight of $H_{3}P{O}_2=\frac{m}{4}+\frac{m}{2}=\frac{3m}{4}$