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Question
What happens when white phosphorus is heated with concentrated NaOH solution in an inert atmosphere of CO2?
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Solution
White phosphorous dissolves in boiling NaOH solution (in a CO2 atmosphere) to give phosphine, PH3.
`P_4 + 3NaOH + 3H_2O -> PH_3 + 3NaH_2PO_2`
Phosphine Sodium hypophosphite
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