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Write the formula of the compound of pho...

Write the formula of the compound of phosphorus which is obtained when conc. `HNO_(3)` oxidises `P_(4)`.

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`{:(" "2HNO_(3) rarr H_(2)O + 2NO_(2) + [O] xx 10),(" "P_(4) + 10[O] rarr P_(4)O_(10)),(P_(4)O_(10) + 6H_(2)O rarr 4 H_(3)PO_(4)),(bar(P_(4) + 20 HNO_(3) rarr underset("Orthophosphoric acid")(4H_(3)PO_(4)) + 2NO_(2) + 4 H_(2)O)):}`
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