Question

Which of the following compounds will be suitable for Kjeldahl's method for nitrogen estimation? 

विकल्प

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Answer 1

Explanation:

Kjeldahl's technique is inapplicable to:

1. Nitrogen-containing organic compounds with rings, such as pyridine, quinoline, etc. organic substances with the diazo (− N = N −) and (−NO²) groups.
2. Kjeldahl's approach thus works best with aniline.