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 :
\[\underset{white\text{ }phosphorus}{\mathop{{{P}_{4}}}}\,\,+3NaOH+3{{H}_{2}}O\xrightarrow{\Delta }\] \[\underset{phosphine}{\mathop{P{{H}_{3}}}}\,\,\,+\,\,\underset{sod.\text{ }hypophosphate}{\mathop{3Na{{H}_{2}}P{{O}_{2}}}}\,\]
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