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# NCERT

7.31     What are the oxidation states of phosphorus in the following:

               Na_{3}PO_{4}

Answers (1)
P Pankaj Sanodiya

we know the oxidation state of sodium(Na) is +1 and oxygen(O_{2}) is -2
Let Oxidation state = x

\\3(+1) + x + 4(-2) = 0\\ 3 + x - 8 = 0\\ x - 5 = 0\\ x = 5

Thus the oxidation state of phosphorus in Na_{3}PO_{4} is +5

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