The reaction of white phosphorus with aqueous NaOH gives phosphine along with another phosphorus containing compound. The reaction type; the oxidation state of phosphorus in phosphine and the other product are respectively

Step-by-step solution

The reaction of white phosphorus with aqueous NaOH gives phosphine along with sodium hydrogen phosphite. It is Disproportionation reaction in which oxidation number of phosphorus is changing from 0 to -3 and +3 as follows P 4 0 + NaOH aq → PH 3 − 3 + Na 2 HPO 3 + 3