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Whether one considers phosphorous pentoxide an acid depends on what definition of an acid is applied. Under the Bronsted-Lowry definition, acids are compounds that donate protons, a definition phosphoric acid fits but not phosphorous pentoxide. Under the Lewis definition, however, an acid accepts a pair of electrons from a base, in which case phosphorous pentoxide is classified as an acid. Its acidic properties are demonstrated by its reaction with water (neutral) to form phosphoric acid (acidic).

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15y ago
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5mo ago

No, phosphorus oxide is not an amphoteric oxide. It is a basic oxide, meaning it reacts with water to form a basic solution. Amphoteric oxides can act as both acidic and basic depending on the conditions.

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14y ago

The oxides of phosphorus are acidic in nature (like many other non metallic oxides) in water they produce acids. P2O5 + 3H2O = 2H3PO4 Phosphoric acid.

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15y ago

No its not, its an acidic oxide :)

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12y ago

All oxides of phosphorus are acidic.

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Q: Is phosphorus oxide an amphoteric oxide?
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