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Which of the following statements is/are...

Which of the following statements is/are true about `H_(3)PO_(2)` ?

A

It is a tribasic acid.

B

One mole of it is neutralized by `0.5` mol of `Ca(OH)_(2)`.

C

`NaH_(2)PO_(2)` is acidic salt.

D

It disproportionates to `H_(3)PO_(3)" and " PH_(3)` on heating.

Text Solution

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The correct Answer is:
B, C
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Knowledge Check

  • Which of the following statements is not true about H_(3)PO_(2) ?

    A
    It is a tribasic acid
    B
    One mole of it is neutralised by 0.5 mole of `Ca(OH)_(2)`
    C
    `NaH_(2)PO_(2)` is not an acidic salt
    D
    It disproportionates to `H_(3)PO_(3) " and " PH_(3)` on heating

  • Which one of the following statements are true about H_2S ?

    A
    It is a dibasic acid
    B
    It is monobasic
    C
    It decomposes carbonates
    D
    It gives only normal salts.

  • Which of the following statement is not true about (CH_(3))_(3)N ?

    A
    It's IUPAC name is trimethanamine
    B
    N-atom is `sp^(3)` - hydridised state
    C
    it has pyramidal structure
    D
    It contain imino group

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    Which of the following statements is/are correct about the reaction? H_(2)SO_(4) +Cu_(3)P + Cr_(2)O_(7)^(2-) rarr CuSO_(4)+H_(3)PO_(4)+2Cr^(3+)

    Which of the following statements is/are correct about the reaction. H_(2)SO_(4)+Cu_(3)P+Cr_(2)O_(7)^(2-)toCuSO_(4)+H_(3)PO_(4)+2Cr^(3+)

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