Identify the correct statements with reference to the given reaction
`P_(4)+3OH^(-)+3H_(2)OtoPH_(3)+3H_(2)PO_(2)^(-)`

Options

A. Phosphorus is undergoing reduction only
B. Phosphorus is undergoing oxidation only
C. Phosphorus is undergoing oxidation as well as reduction
D. Hydrogen is undergoing neither oxidation nor reduction

Explanation

Writing the O.N of each element above its symbbol we have
`P_(4)^(0)+3OH^(-)+3H_(2)OrarrPH_(3)+3H_(2)PO_(2)^(-)`
In this reaction O.N of P increses form 0 in `P_(4)` to +1 in `H_(2)PO_(2)^(-)` and decrease to -3 in `PH_(3)` therefore P has undergone both oxidation as well as reduction thus option (a) and (b) are wrong and option (c ) is correct further O.N (d) id correct in other words option (c ) and (d) are correct
reduction thus option (d) is correct in other words option (c ) and (d) are correct