Which one of the following has the maximum number of P-OH bonds?
(A) H3PO2, (B) H3PO4 (C) H3PO3 (D) H4P2O5 (E) H4P2O6
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Answer:
d and e have 4 P-OH bonds
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Answer:
(E) H4P2O6
Explanation:
The maximum number of P−H bonds are there in pyrophosphoric acid.
H4P2O6:
Having phosphorus in the oxidation state of +4, hypophosphoric acid is a mineral acid. Its chemical name is H4P2O6.
Red phosphorus and sodium chlorite can be combined to create hypophosphoric acid at room temperature. Hypophosphoric acid, phosphorous acid, and phosphoric acid are all produced when white phosphorus is partially submerged in water and oxidizes in the air.
The structure of pyrophosphoric acid is shown in the figure. The number of P−OH bonds is 4.
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