Answer
$Na_{3}PO_{4}$, Oxidation state of Phosphorus is +5
Work Step by Step
Net oxidation state of a compound is 0, hence:
Na: +1 x 3 = +3, O: -2 x 4 = -8, hence P should have oxidation state of +5
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.