1.

P_(4)O_(10) is an anhydride of :

Answer»

`H_(3)PO_(2)`
`H_(3)PO_(3)`
`H_(3)PO_(4)`
`H_(4)P_(2)O_(7)`

SOLUTION :`4H_(3)PO_(4) to P_(4)O_(10)+6H_(2)O`


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