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Question

With excess of water, both P2O5 and PCl5 give:
  1. H3PO3
  2. H3PO4
  3. H3PO2
  4. H4P2O7

A
H3PO3
B
H3PO2
C
H4P2O7
D
H3PO4
Solution
Verified by Toppr

Both P2O5 and PCl5 give H3PO4 with excess of water.

P2O5+3H2O2H3PO4

PCl5+4H2OH3PO4+5HCl

Hence, option C is correct.

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