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In hypophosphorous acid P is in +1 state...

In hypophosphorous acid P is in +1 state `(H_(3)PO_(2))` and in phosphoric acid `(H_(3) PO_(4))` Pis in +5 state but still `H_(3)PO_(2)` is stronger than `H_(3)PO_(4)`. Explain.

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To understand why hypophosphorous acid (H₃PO₂) is a stronger acid than phosphoric acid (H₃PO₄), despite phosphorus being in a lower oxidation state in H₃PO₂, we need to analyze the structure and properties of both acids. ### Step 1: Understand the Structure of the Acids - **Hypophosphorous Acid (H₃PO₂)**: This acid has the following structure: - It contains one phosphorus atom bonded to two hydroxyl groups (-OH) and one hydrogen atom. The phosphorus in H₃PO₂ is in the +1 oxidation state. - **Phosphoric Acid (H₃PO₄)**: This acid has a different structure: - It contains one phosphorus atom bonded to four oxygen atoms, three of which are in the form of hydroxyl groups (-OH) and one in a double bond (P=O). The phosphorus in H₃PO₄ is in the +5 oxidation state. ...
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Knowledge Check

  • Phosphoric acid H_(3)PO_(4) can not be neutralised to :

    A
    `HPO_(4)^(2-)`
    B
    `PO_(4)^(2-)`
    C
    `H_(2)PO_(4)^(-)`
    D
    `HPO_(3)^(2-)`
  • The basicity of phosphorus acid (H_(3)PO_(3)) is :

    A
    one
    B
    two
    C
    four
    D
    three
  • The equivalent weight of phosphoric acid (H_(3)PO_(4)) in the reaction NaOH+H_(3)PO_(4) rarr NaH_(2)PO_(4)+H_(2)O is

    A
    `25`
    B
    `98`
    C
    `59`
    D
    `49`
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