Which of the following oxoacids of phosphorus contains a `P-P` bond?

Options

A. Hypophosphoric acid
B. Pyrophosporic acid
C. Pyrophosphorous acid
D. Polymetaphosporic acid

Answer

1

Explanation

Hyprosphoric acid is the only oxacid of phosphorus which conrtains a `P-P` bond:
`HO-underset(OH)underset(|)overset(O)overset(||)(P)-underset(OH)underset(|)overset(O)overset(||)(P)-OH`
`underset(("Pyrophosphric"),("acid"))(HO-underset(OH)underset(|)overset(O)overset(||)(P)-O-underset(OH)underset(|)overset(O)overset(||)(P)-OH)" "underset(("Pyrophosphorous"),("acid"))(HO-underset(H)underset(|)overset(O)overset(||)(P)-O-underset(H)underset(|)overset(O)overset(||)(P)-OH)`
Pyrophosphorous acid is obtained by reacting `PCl_(3)` with phosphorous acid