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प्रश्न
What is the oxidation state of phosphorus in the following:
Na3PO4
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उत्तर
Let the oxidation state of P be x.
Na3PO4
3(+1) + x 4(−2) = 0
3 + x − 8 = 0
x − 5 = 0
x = +5
∴ The oxidation state of phosphorus in Na3PO4 is +5.
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Match List-I with List-II:
| List-I | List-II |
| name of oxo acid | Oxidation state of 'P' |
| (a) Hypophosphorous acid | (i) +5 |
| (b) Orthophosphoric acid | (ii) +4 |
| (c) Hypophosphoric acid | (iii) +3 |
| (d) Orthophosphorous acid | (iv) +2 |
| (v) +1 |
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