Consider the reaction $\mathrm{P}_4+3 \mathrm{NaOH}+3 \mathrm{H}_2 \mathrm{O} \rightarrow \mathrm{Q}+3 \mathrm{NaH}_2 \mathrm{PO}_2$ Identify the reaction in which $\mathrm{Q}$ is not the product. (Equations are not balanced)

• A

  $\mathrm{Ca}_3 \mathrm{P}_2+\mathrm{H}_2 \mathrm{O} \rightarrow$
• B

  $\mathrm{H}_3 \mathrm{PO}_3 \stackrel{\Delta}{\longrightarrow}$
• C

  $\mathrm{PH}_4 \mathrm{I}+\mathrm{KOH} \rightarrow$
• Correct answer
  D

  $\mathrm{PCl}_3+\mathrm{H}_2 \mathrm{O} \rightarrow$

Solution

The equation for the reaction that does not give phosphine $\left(\mathrm{PH}_3\right)$ is :- $\mathrm{PCl}_3+3 \mathrm{H}_2 \mathrm{O} \rightarrow \mathrm{H}_3 \mathrm{PO}_3+3 \mathrm{HCl}$

Hence, the correct answer is option: 'D'.