1.

P_4O_6 and P_4O_10are anhydrides of :

Answer»

`H_3PO_3 and H_3PO_4`
`H_3PO_4 and H_4P_2O_7`
`H_3PO_3 and H_4P_2O_7`
`H_3PO_2 and H_3PO_3` respectively

Answer :A


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