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Orthophosphoric acid loses water on heat...

Orthophosphoric acid loses water on heating. The reaction sequence is represented as:

A

`H_(3)PO_(4) overset(250^(@)C)rarr H_(4)P_(2)O_(7) overset(600^(@)C)rarr HPO_(3)`

B

`H_(3)PO_(4)overset(250^(@)C)rarr HPO_(3) overset(600^(@)C)rarr H_(40P_(2)O_(7)`

C

`H_(3)PO_(4)overset(250^(@)C)rarr P_(2)O_(5)`

D

`H_(3)PO_(4)overset(250^(@))rarr HPO_(3) overset(600^(@)C)rarr H_(4)P_(2)O_(7) overset("red hot")rarr P_(2)O_(5)`

Text Solution

Verified by Experts

The correct Answer is:
A
`H_(3)PO_(4) overset(250^(@)C)rarr H_(4)P_(2)O_(7) overset(600^(@)C)rarr HPO_(3)overset(Delta)rarr P_(4)O_(10)`
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