Engineering
Chemistry
Compounds of phosphorus
Compounds of Nitrogen Family
Question

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

disproportionation reaction ; –3 and + 3

disproportionation reaction ; – 3 and +5

redox reaction; + 3 and +5

redox reaction ; – 3 and – 5

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Solution

3NaOH + P4 + 3H2O   PH3(–3) + 3NaH2PO2(+1)

H2PO2 + 2OH  2H2 + PO43– (+5)