P_(4)O_(10) is the anhydride of

1.	P_(4)O_(10) is the 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)toP_(4)O_(10)+6H_(2)O`.

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