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Equivalent weight of H(3)PO(2) when it d...

Equivalent weight of `H_(3)PO_(2)` when it disproportionates into `PH_(3)` and `H_(3)PO_(3)` is (mol.wt. of `H_(3)PO_(2)=M`)

A

Molecular mass `//10`

B

`( 3M)/( 4)`

C

`( M )/( 2) `

D

`( M )/( 4) `

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The correct Answer is:
B
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