Question

P₄O₁₀ is an anhydride of

Options

• H₃PO₂

• H₃PO₃

• H₃PO₄

• H₄P₂O₇

Answer 1

H₃PO₃ 

Explanation:

\[\ce{P4O6 + \underset{(Cold)}{6H2O} -> 4H3PO3}\]