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Acetic acid and not sulphuric acid is es...

Acetic acid and not sulphuric acid is essential for acidification of sodium extract for testing sulphur by lead acetate test because

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For testing sulphur, the sodium extract is acidified with acetic acid because lead acetate is soluble and does not interfere with the test. If `H_(2)SO_(4)` were used, lead acetate itself will react with `H_(2)SO_(4)` to form white ppt. of lead sulphate which will interfere with the test.
`underset("Lead acetate")(Pb(OCOCH_(3))_(2) )+H_(2)SO_(4) rarr underset("(White ppt.)")(PbSO_(4)darr) + 2CH_(3)COOH`
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Why is it necessary to use acetic acid and not suplhuric acid for the acidification of sodium extract for testing suplhur by lead acetate test?

It is not advisable to use sulphuric acid in place of acetic acid for acidification while testing sulphur by lead acetate test. Assign reason.

Knowledge Check

  • Acetic acid is weaker than sulphuric acid because

    A
    It is not corrosive like sulphuric acid
    B
    It ionises to a smaller degree
    C
    It decompose to a lower temperature
    D
    it gives only one `H^+` per molecule

  • Acetic acid s weak acid than sulphuric acid because

    A
    it decomposes on increasing temprature
    B
    it has less degree of ionisation
    C
    it has `COOH` group
    D
    none of these

  • Acetic acid is weak acid than sulphuric acid because

    A
    It decompose on increasing temperature
    B
    It has less degree of ionisation
    C
    It has -COOH group
    D
    None of these

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    Why sulphuric acid is stronger than sulphurous acid?

    Acetic acid is essentially present in

    Basicity of sulphurous acid and sulphuric acid are

    Specific gravity of sulphuric acid in lead accumulator is

    Acetic acid is a weak acid because :

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