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06/12/2021 12:41 pm
Topic starter
In the following reaction
4P + 3KOH + 3H2O → 3KH2PO2 + PH3
(a) phosphorus is both oxidised and reduced.
(b) only phosphorus is reduced.
(c) phosphorus is not oxidised
(d) None of these
1 Answer
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06/12/2021 12:50 pm
Correct answer: (a) phosphorus is both oxidised and reduced.
Explanation:
4P + 3KOH + 3H2O → 3KH2PO2 + PH3
O.N of P = 0, In KH2PO2 it is + 1,
In PH3 it is -3.
Hence P is oxidised and reduced.