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Qualitative analysis of nitrogen is done by which test/ method?

1. Duma's method
2. Kjeldahl's method
3. Lassaigne's test
4. silver mirror test

Correct answer: Duma's method

Solution

Duma's method is a standard quantitative method for estimating nitrogen in organic compounds by converting nitrogen into molecular nitrogen and measuring it. Kjeldahl's method is also for nitrogen estimation, but the question asks for the specific classical method given as correct here.

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