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An oxy acid of phosphorus is a white del...

An oxy acid of phosphorus is a white deliquescent crystalline solid. It can be prepared by the hydrolysis of `P_(2)O_(3)` or `PCl_(3)` and its formula is :

A

`H_(3)PO_(4)`

B

`H_(3)PO_(3)`

C

`H_(3)PO_(2)`

D

`H_(4)P_(2)O_(7)`.

Text Solution

Verified by Experts

The correct Answer is:
B
`PCl_(3)+H_(2)Prarr H_(3)PO_(3)+3HCl`
`P_(4)O_(6)+6H_(2)Orarr 4H_(3)PO_(3)`
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