Question:
In the estimation of nitrogen present in an organic compound, Kjeldahl's method cannot be applied to
In the estimation of nitrogen present in an organic compound, Kjeldahl's method cannot be applied to
Updated On: Apr 4, 2025
pyridine
- toluidine
- urea
Aniline
- benzylamine
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The Correct Option is A
Solution and Explanation
The Kjeldahl's method cannot be applied to pyridine.
Explanation:
Kjeldahl's method is a widely used technique for the estimation of nitrogen in organic compounds. However, it cannot be applied to pyridine because pyridine is a basic compound and can react with the strong acids used in the Kjeldahl method, interfering with the process. The method works by converting the nitrogen into ammonium salt, but pyridine forms pyridinium salts, which prevent the complete conversion of nitrogen. Therefore, the presence of pyridine would lead to inaccurate results.
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