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P(4)+3overset(ө)OH+3H(2)Orarr3H(2)Orarr3...

`P_(4)+3overset(ө)OH+3H_(2)Orarr3H_(2)Orarr3H_(2)PO_(2)^(ө)+PH_(3)`
Equivalent weight of `P_(4)` is

A

`(M)/(4)`

B

`(M)/(12)`

C

`((M)/(4)+(M)/(12))`

D

`((M)/(2)+(M)/(6))`

Text Solution

Verified by Experts

The correct Answer is:
C
Disproportionation reaction
`P_(4)rarr4H_(2)PO_(2)^(ө)+4e^(-)(x=4)`(oxidation)
`4x=0, 8+4x-16= -4`
`4x=4`
`12e^(-)+P_(4)rarr4PH_(3)(x=12)`(reduction)
`4x=0, 4x+12=0`
`4x= -12`
`Ew=(M)/(4)+(M)/(12)`
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