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H(3)PO(4) overset(Delta)rarr X overset(D...

`H_(3)PO_(4) overset(Delta)rarr X overset(Delta)rarrY` gives a white precipitate with silver nitrate solution.
Y can form polyanions. The one that represents the polyanion is:

A

`P_(3)O_(9)^(3-)`

B

`P_(2)O_(7)^(2-)`

C

`P_(4)O_(13)^(6-)`

D

`P_(3)O_(10)^(5-)`

Text Solution

Verified by Experts

The correct Answer is:
A
`X=H_(4)P_(2)O_(7) , Y = HPO_(3)`
A = ammonium 12 - molybdo phosphate
`[(NH_(4))_(3)PO_(4).12MoO_(3)]`
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