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In the following reaction, 4P+3KOH+3H(...

In the following reaction,
`4P+3KOH+3H_(2)O rarr 3KH_(2)PO_(2)+PH_(3)`

A

only phosphorus is oxidised and reduced

B

only phosphorus is reduced

C

phosphorus is both oxidised and reduced

D

phosphorus is neither oxidised nor reduced

Text Solution

Verified by Experts

The correct Answer is:
C
`4P+3KOH+3H_(2)O to 3KH_(2)PO_(2)+PH_(3)`
O.N. of P=O.
In `KH_(2)PO_(2)` it is `+1`, in `PH_(3)` it is `-3`.
Hence P is oxidised and reduced.
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