Q. The oxidation states of P in the following compounds

H3PO3, PCl3, Ca3P2, Na3PO4, ​POF3 are respectively be

 1998  200 NTA AbhyasNTA Abhyas 2020The p-Block Elements - Part2 Report Error

Solution:

Let the oxidation state of phosphorus be x.

(i) H3PO3 (3 + 1) + x + (3 - 2) = 0

x = + 3

(ii) PCl3 x + (3 - 1)

x = + 3

(iii) Ca3P2 (3 + 2) + 2x

x = - 3

(iv) Na3PO4 (3 1) + x + (4 - 2)

x = + 5

(v) POF3 x + (- 2) + (3 - 1)

x = + 5