Chemistry · Group 13 to Group 18 Elements
aqueous \longrightarrow \) Compound is:
aqueous \( N a O H+P_{4}(w h i t e) \longrightarrow \) \( \boldsymbol{P H}_{3}+\boldsymbol{X} . \) Compound \( \mathbf{X} \) is:
- A. \( N a H_{2} P O_{2} \)
- B. \( N a_{2} H P O_{4} \)
- C. \( N a_{2} C O_{3} \)
- D. \( \operatorname{NaH} \mathrm{CO}_{3} \)
Step-by-step solution
White phosphorus (P4) reacts with aqueous NaOH in a disproportionation reaction: P4 + 3NaOH + 3H2O → PH3 + 3NaH2PO2. The compound X formed is sodium hypophosphite (NaH2PO2).
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