NCERT Exercise 8.22 - Organic Chemistry – Some Basic Principles and Techniques
Question: Compare Dumas and Kjeldahl methods for nitrogen estimation.
Answer: Dumas measures liberated N2 after combustion; Kjeldahl converts nitrogen to NH4+, liberates NH3 and titrates it. Kjeldahl is unsuitable for nitro, azo and related resistant nitrogen compounds.
Full step-by-step NCERT solution with diagrams on Something by Zero.