NEETChemistryGeneral Organic Chemistry
Why is it necessary to use acetic acid and not sulphuric acid for acidification of sodium extract for testing sulphur by lead acetate test?
Options
- AAcetic acid is less corrosive and safer to handle than sulphuric acid, making it a preferred choice for acidif
- BSulphuric acid can not react with lead acetate to form insoluble lead sulphate, which would interfere with the
- CAlthough the addition of sulphuric acid will precipitate lead sulphate, the addition of acetic acid will ensur
- DSulphuric acid can react with sodium to form insoluble sodium sulphate, which would interfere with the lead ac
Correct answer
C. Although the addition of sulphuric acid will precipitate lead sulphate, the addition of acetic acid will ensur
Step-by-step solution
Correct Option is : (C) Although the addition of sulphuric acid will precipitate lead sulphate, the addition of acetic acid will ensure a complete precipitation of sulphur in the form of lead sulphate due to common ion effect. Hence, it is necessary to use acetic acid for acidification of sodium extract for testing sulphur by lead acetate test.