The no. of hydroxyl group in pyrophosphoric acid is:
A
3
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B
4
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C
5
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D
7
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Solution
The correct option is B4
Pyrophosphoric acid, also known under the name diphosphoric
acid,with a chemical formula
H4O7P2 is colorless, odorless, hygroscopic and is soluble in water,
diethyl ether, and ethyl alcohol.