In the reaction `P_4 + 3 KOH + 3H_2 O to PH_3 + 3KH_2 PO_2`
In the reaction
`P_4 + 3 KOH + 3H_2 O to PH_3 + 3KH_2 PO_2`
A. Reduced
B. Oxidised
C. Oxidised and reduced
D. Neither oxidized nor reduced
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Correct Answer - B
`P_(4)+3KOH+3H_(2)O to 3KH_(2)PO_(2)+PH_(3)`
O.N. of P in `P_(4)`=0
O.N. of P in `KH_(2)PO_(2) =+1`
[1+2+1+x+2(-2)=0
1+2+x-4=0 or x=1]
O.N of P in `PH_(3) =-3`
`:. ` Phosphorus is oxidised as well as reduced in the reaction.
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