Oxidation number of P of H_(3)PO_(4) is similar with P of which compou

1.	Oxidation number of P of H_(3)PO_(4) is similar with P of which compound ?
Answer» `PH_(3)` `P_(2)O_(3)` `P_(2)O_(7)^(-4)` All of these Solution :`H_(2)PO_(4)=3(+1)+x+4(-2)=0` `therefore3+x-8=0` `thereforex=+5` `P_(2)O_(7)^(-4)=2x+7(-2)=-4` `therefore2x=10` `thereforex=+5`

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