Which of the following statements is/are correct regarding the digestion step in Kjeldahl's method f — Practical Organic Chemistry and Purification Chemistry Question
Question
Which of the following statements is/are correct regarding the digestion step in Kjeldahl's method for the estimation of nitrogen?
Answer: A,B,C
💡 Solution & Explanation
During Kjeldahl digestion, the organic compound is heated with concentrated $H_2SO_4$. $K_2SO_4$ is added to elevate the boiling point of the acid, ensuring a higher reaction temperature. $CuSO_4$ acts as a catalyst. The goal is to quantitatively convert organic nitrogen into ammonium sulphate, $(NH_4)_2SO_4$. Nitric acid is not used here.
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