The true statement of the acids of phosphorus `H_3 PO_2, H_3 PO_2` and `H_3 PO_4` is

Options

A. The order of their acidity is `H_(3)PO_(4) gt H_(3)PO_(3) gt H_(3)PO_(2)`
B. All of them are reducing in nature
C. All of them are tribasic acids
D. The geometry of phosphorus is tetrahedral in all the three.

Answer

D

Explanation

`H_(3)PO_(2),H_(3)PO_(3)` and `H_(3)PO_(4)`, all have tetrahdedral geometry around phosphorus.