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Why is it necessary to use acetic acid a...

Why is it necessary to use acetic acid and not sulphuric acid for acidification of sodium extract for testing sulphur by lead acetate test?

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Lead acetate is soluble in acetic acid. Therefore, acetic acid is used for the acidification of the sodium extract. If sulphuric acid is used, it will react with lead acetate to form a white precipitate of lead sulphate which will interfere in the test of sulphur.
` underset("Lead acetate")((CH_3COO)_2 Pb) + H_2SO_4 to underset("Lead sulphate (White ppt.)")(PbSO_4 darr) + 2CH_3 COOH`
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ICSE-ORGANIC CHEMISTRY : SOME BASIC PRINCIPLES AND TECHNIQUES -NCERT TEXT-BOOK EXERCISES (WITH HINTS AND SOLUTIONS )
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  4. Explain the principle of paper chromatography.

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  12. An organic compound contains 69% carbon and 4.8% hydrogen, the remaind...

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  17. In the Lassaigne’s test for nitrogen in an organic compound, the Pruss...

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