Kjeldahl's method cannot be used to estimate nitrogen for which of the following compounds?

Question

C₆H₅NH₂

${\rm{N}}{{\rm{H}}_2} - \mathop C\limits^{\mathop \parallel \limits^O } - {\rm{N}}{{\rm{H}}_2}$

C₆H₅NO₂

CH₃CH₂-C $ \equiv $ N

Please login to view the detailed solution steps...