P Block Elements

Consider the reaction,

\(\mathrm{P}_4+3 \mathrm{NaOH}+3 \mathrm{H}_2 \mathrm{O} \longrightarrow Q+3 \mathrm{NaH}_2 \mathrm{PO}_2\)

Identify the reaction in which $Q$ is not the product. (equations are not balanced)