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#Kjeldahl

2 public questions tagged with this topic.

CHEMISTRY

In Kjeldahl’s method, which acid is used to digest the organic compound?

H₂SO₄ is used to digest the organic compound, converting nitrogen to (NH₄)2SO₄ in Kjeldahl’s method. This follows from latest NCERT 2026-27 principle explaining the concept clearly for NEET students in simple steps as per rationalized syllabus.

Ref: NCERT Chemistry Textbook - Latest Edition for Academic Session 2026-27 (Rationalized Textbook for Class XI and XII), Chapter: Chemical Bonding (Latest NCERT 2026-27), Topic: Hybridization of nitrogen in CH₃NH₂, sp³ hybridization and pyramidal geometry

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CHEMISTRY

In Kjeldahl’s method, which base is used to liberate ammonia from the digested sample?

NaOH is added to the digested sample ( (NH₄)2SO₄ ) to liberate NH₃, which is then distilled and titrated. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Chemistry Textbook for Class XI and XII, Chapter: Some Basic Concepts, Structure of Atom and Periodicity, Topic: Mole concept, atomic models and periodic trends.

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