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The true statement for the acids of phos...

The true statement for the acids of phosphorus, 'H3PO2, H3PO3 and H3PO4 ' is

A

The order of their acidity is H3PO4>H3PO3>H3PO2

B

All of them are reducing in nature

C

All of them are tribasic acids

D

The geometry of P is tetrahedral in all the three

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • The true statement for the acids of phosphorus H_3PO_2,H_3PO_3 and H_3PO_4 is

    A
    their acidic nature is : `H_3PO_4 lt H_3PO_3 lt H_3PO_2`
    B
    all of them are reducing in nature
    C
    all of them are tribasic acids .
    D
    the geometry is tetrahedral in all the three

  • The true statement for the acids of phosphorus. H_3PO_2 , H_3 PO_3 and H_3 PO_4 is

    A
    their acidic nature is: `H_3 PO_4 lt H_3 PO_3 lt H_3 PO_2 `
    B
    all of them are reducing in nature
    C
    all of them are tribasic acids
    D
    the geometry is tetrahedral in all the three

  • The equilibrium constants for the reaction are: H _(3) PO _(4) overset(K _(1)) hArr H ^(+) + H _(2) PO _(4) ^(-) , K _(1) H _(2) PO _(4) ^(-) overset( K _(2)) hArr H ^(+) + HPO _(4) ^(2-) , K _(2) HPO _(4) ^(2-) overset( K _(3)) hArr H ^(+) + PO _(4) ^(3-), K _(3) The equilibrium constant for H _(3) PO _(4) hArr 3H ^(+) + PO _(4) ^(3-) will be:

    A
    `K _(1) // K _(2) K _(3)`
    B
    `K _(1) xx K _(2) xx K _(3)`
    C
    `K _(2) // K _(1) K _(3)`
    D
    `K _(1) + K _(2) + K_(3)`

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    Give reason for the following:- H_3PO_3 is diprotic whereas H_3PO_4 is triprotic.

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    The equilibrium constant for the reaction are : H_(3)PO_(4) overset(K_(1))hArr H^(+) + H_(2)PO_(4)^(-), K_(1) H_(2)PO_(4)^(-) overset(K_(2))hArr H^(+) + HPO_(4)^(2-) , K_(2) HPO_(4)^(2-) overset(K_(3))hArr H^(+) + PO_(4)^(3-), K_(3) The equilibirum constant for H_(3)PO_(4) hArr 3H^(+) + PO_(4)^(3-) will be

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