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An oxyacid of phosphorous has the follow...

An oxyacid of phosphorous has the following properties: Complete neutralisation of the acid with `NaOH` solution gives an aq solution of `Na^(+)` ions and oxyacid anions in the ratio 2:1. When a solution of the acid is warmed with silver nitrate solution mtallisilver is deposited.
This oxyacid is converted into____on heating `(200^(@)C)`:

A

`H_(3)PO_(4)`

B

`H_(3)PO_(2)`

C

`HPO_(2)`

D

`H_(4)P_(2)O_(6)`

Text Solution

Verified by Experts

The correct Answer is:
A
`H_(3)PO_(3)+2NaOHrarrNa_(2)HPO_(3)+2H_(2)O`
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NARAYNA-15TH GROUP ELEMENTS-Level-VI
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