The Kjeldahl's method for the estimation of nitrogen can be used to estimate the amount of nitrogen in which…
Solution
Kjeldahl's method cannot be used for nitrogen determination of compounds having nitro group, azo group or nitrogen present in the rings.

In the pyridine, nitrogen present in the ring.

The above molecule is azo benzene.

The above molecule is nitro benzene.
Asked in: NEET 2022 (Phase 1)
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