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Q.
How many $P-OH$ bonds do pyrophosphoric acid have?
NTA AbhyasNTA Abhyas 2020The p-Block Elements
Solution:
Pyrophosphoric acid $\left(H_{4} P_{2} O_{7}\right)$ is one of the oxoacids of the phosphorus having the oxidation state of phosphorous as $+5$ . It has four $P-OH$ bonds, two $P=O$ bonds and one $P-O-P$ bond in its structure as shown below.
This acid is prepared by heating of phosphoric acid.
