Question

balance the following :
P4 + OH^- (aq) → PH3 (g) + H2PO2^- (aq)

Answer 1

Balance using Oxidation no. and ion-electron method. P4 + OH- ----> PH3 + H2PO2-

Balance using Oxidation no. and ion-electron method.
P4 + OH- ----> PH3 + H2PO2-

Answer 2

P4 + 3 OH{-} + 3 H2O = 3 H2PO2{-} + PH3
i hope it helped u