Kjeldahl Method
Kjeldahl's method cannot be used for direct estimation of nitrogen in:
Select the correct option:
Solution
Nitrobenzene
Kjeldahl method converts organic nitrogen to ammonium sulfate during digestion. Nitro and azo nitrogen are not converted quantitatively under standard Kjeldahl conditions, so compounds like nitrobenzene are not directly estimated by this method.
🔒 Solution Hidden from View
Submit your answer to unlock the detailed step-by-step solution.
About This Question
- Subject
- chemistry
- Chapter
- principles related to practical chemistry
- Topic
- kjeldahl method
- Difficulty
- Hard
- Year
- 2025
Solution
Correct Answer:
Nitrobenzene
Kjeldahl method converts organic nitrogen to ammonium sulfate during digestion. Nitro and azo nitrogen are not converted quantitatively under standard Kjeldahl conditions, so compounds like nitrobenzene are not directly estimated by this method.
This hard difficulty chemistry question is from the chapter principles related to practical chemistry, covering the topic of kjeldahl method. It appeared in the 2025 exam.
Looking for more practice? Explore all chemistry questions or browse principles related to practical chemistry questions on RankGuru.