In the estimation of sulphur, sulphur is converted to which compound for precipitation?
In the Carius method, sulphur is oxidized to H₂SO₄, which reacts with BaCl₂ to form BaSO₄ for estimation.
Ref: NCERT Class 11 Chemistry > Chapter 8: Organic Chemistry - Some Basic Principles and Techniques > Topic: Qualitative and Quantitative Analysis - Lassaigne Test and Estimation