Q. The Kjeldahl's method for the estimation of nitrogen can be used to estimate the amount of nitrogen in which one of the following compounds?
A) [image:2022_Q114_opt_a.png]
B) [image:2022_Q114_opt_b.png]
C) [image:2022_Q114_opt_c.png]
D) [image:2022_Q114_opt_d.png]
Explanation
[Solution] Kjeldahl's method is not applicable to compounds with nitrogen in nitro/azo groups or in a ring (pyridine). Aniline (option d) can be estimated. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.