A) \[P{{H}_{3}}+Na{{H}_{2}}P{{O}_{2}}\]
B) \[P{{H}_{3}}+N{{a}_{2}}P{{O}_{4}}\]
C) \[P{{H}_{3}}+N{{a}_{2}}HP{{O}_{2}}\]
D) \[{{H}_{3}}P{{O}_{4}}+NaO\]
Correct Answer: A
Solution :
\[\underset{\text{white}\,\text{phosphorus}}{\mathop{{{\text{P}}_{\text{4}}}}}\,+3NaOH+3{{H}_{2}}O\xrightarrow{\Delta }\] \[\underset{\text{phosphine}}{\mathop{P{{H}_{3}}}}\,+\underset{\text{sod}\text{.hypophosphate}}{\mathop{3Na{{H}_{2}}P{{O}_{2}}}}\,\]
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