Question

Equivalent mass of $P_4$ in the reaction
$P_4+3O\overline{H}+3H_{2}O\to P{H}_3+3H_{2}P{O}_2^{-}$
$(\text{Molar mass of}{P}_4=M)$

• A. $\frac{M}{12}$
• B. $\frac{M}{6}$
• C. $\frac{M}{3}$
• D. $\frac{M}{4}$

Answer 1

The correct option is C $\frac{M}{3}$

Answer (4)
$n_o=n,n_R=12$
$n_f\left(P_4\right)=\frac{4\times 12}{4+12}=3$
Equivalent mass$\left(P_4\right)=\frac{M}{3}$