Question

What are the oxidation states of phosphorus in the following:
(i) $H_{3}P{O}_3$ (ii) $PC{l}_3$ (iii) $C{a}_3{P}_2$ (iv) $N{a}_{3}P{O}_4$ (v) $PO{F}_3$?

Answer 1

The oxidation states of phosphorus in $H_{3}P{O}_3,PC{l}_3,C{a}_3{P}_2,N{a}_{3}P{O}_4$ and $PO{F}_3$ are $+3,+3,-3,+5$ and $+5$ respectively.