Question

Determine the oxidation state of P in PO3³-.

Select one:
A. +3
B. +2
o c. ox
D. -3
OE. +6

Answer 1

A) +3

As a whole PO3 has a charge of -3, which means O has a charge of -6 since there’s 3 of them and P has +3.

3+(-6) = -3