MCQ
${P_4} + 3NaOH + 3{H_2}O \to A + 3Na{H_2}P{O_2}$ here, $'A'$ is
  • A
    $N{H_3}$
  • $P{H_3}$
  • C
    ${H_3}P{O_4}$
  • D
    ${H_3}P{O_3}$

Answer

Correct option: B.
$P{H_3}$
b
(b) This is the laboratory method of preparing phosphine gas.

${P_4} + 3NaOH + 3{H_2}O \to P{H_3} + 3Na{H_2}P{O_2}$

In this reaction, phosphorus disproportionate into phosphine and sodium hydrogen phosphite.

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