The oxidation state of "'p'" in "\(NaH_{2}PO_{4}\)

The oxidation state of 'P' in Ba(H_(2)PO_(2))_(2) is

The oxidation states of P atom in POCl_(3),H_(2)PO_(3)" and "H_(4)P_(2)O_(6), respectively, are

The oxidation state of phosphorus in PO_(4)^(3-),P_(4)O_(10) and P_(2)O_(7)^(4-) is

The order of the oxidation state of the phosphorus in H_(3)PO_(2),H_(3)PO_(4),H_(3)PO_(3) and H_(4)P_(2)O_(6) is

A : H_(3) PO_4 is less acidic than H_(3) PO_(3) . R : Oxidation state of phosphorus in H_(3) PO_(4) lt H_(3) PO_(3) .

Consider the following oxoacids of phosphorus : H_(3)PO_(4),H_(3)PO_(3) and H_(3)PO_(2) . All 'P' atoms in the oxoaxids and oxoanions are 4 corrdinate and contain at least one P = O unit. All 'P' atoms in oxoacids have at least one P-OH group which ionises to give H^(+) ion. The oxidation state of 'P' is +5 only when it is directly attached to 4 oxygen atoms. For every two units decrease in oxidation state of Phosphorus, there is one P-H bond. The number of acidic hydrogens present in one formula unit of each of NaH_(2)PO_(4), NaH_(2)PO_(3) and NaH_(2)PO_(2) are respectively: