In `PO_(4)^(3-)` ion the formal charge on the oxygen atom of P-O bond is

Options

A. `+1`
B. `-1`
C. `-0.75`
D. `+0.75`

Answer

B

Explanation

Structure of `PO_(4)^(3+)` ion.

Formal charge on oxygen of P-O bond [No of valence electrons on a atom]- [No of unshared electrons] `-^(1//2)` [No. of shared electrons] `[6-6-^(1//2)xx2]=-1`