H4P3O7 (Pyrophosphoric acid) is the strongest oxoacid of phosphorus among all oxoacids. Which of the following is the correct reason for its high acidity?
1
H4P2O7 is the only oxoacid of phosphorus that forms a cyclic structure. has the highest oxidation state of phosphorus.
2
It has the maximum number of P=O bonds, which stabilizes the conjugate base.
3
H4P2O7 has the highest molecular weight among the oxoacids of phosphorus.
4
H4P2O7 is the only oxoacid of phosphorus that forms a cyclic structure.